Why Governance Failures Often Start with Weak NED Oversight

By Adrian Lawrence FCA, founder of NED Capital · Part of the Board Governance Hub

Governance failures are usually described in terms of what the executives did — the aggressive accounting, the reckless expansion, the risks that were taken. But that is only half the story. In a well-governed company, executive misjudgement is caught and corrected by the board before it becomes a crisis. That is what the board is for. So when a company fails through poor governance, the more revealing question is not only what management did wrong, but why the non-executive directors — whose entire purpose is independent oversight and challenge — failed to stop it.

Look at the major UK corporate collapses of recent years and a consistent pattern emerges. The non-executive directors were present, but their oversight was weak: they did not have the expertise to challenge, or the independence to want to, or the information to do it properly, or simply the will to disrupt a comfortable board. This guide examines why governance failures so often begin with weak NED oversight, what the UK inquiries actually found, and what it means for how boards should be built.

The NED as the Last Line of Defence

The case for independent non-executive directors rests on a simple insight: executives cannot be the only check on themselves. They are close to the business, invested in its strategy, and rewarded for its short-term performance — all of which can cloud judgement in precisely the moments when clear judgement matters most. The non-executive directors exist to supply what the executives structurally cannot: distance, independence, and the willingness to ask uncomfortable questions. The UK Corporate Governance Code makes this explicit, defining constructive challenge and holding management to account as central duties of the non-executive director.

This makes the NED the last line of defence in a company’s governance. Below them sit the executives making decisions; around them sit the external auditors, whose work the audit committee oversees. But the board’s independent directors are the internal mechanism specifically charged with catching a bad decision before it becomes a disaster. When they function well, they are invisible — problems are challenged and corrected quietly, and no crisis occurs. When they function badly, the effect is equally invisible until the company fails, at which point it becomes clear that the safeguard was never really working.

This is why governance failures so often trace back to the non-executives. It is not that the NEDs caused the failure — it is that they were the safeguard that should have prevented it, and did not. Understanding how that safeguard fails is the key to preventing it.

How Oversight Actually Fails

Weak NED oversight is rarely a matter of bad intentions. It is usually the product of one or more specific, recognisable weaknesses — and because these weaknesses are consistent across failure after failure, they are also the things a well-run board can guard against deliberately.

Lack of relevant expertise. A non-executive director who does not genuinely understand the business or its finances cannot provide meaningful challenge. They may ask general questions, but they cannot interrogate a complex accounting treatment, test a risky financing structure, or recognise that a revenue forecast is implausible. Where the board lacks members with the specific financial and sector expertise to see through what management presents, oversight becomes superficial — a review of the surface rather than a scrutiny of the substance.

Compromised independence. The value of a non-executive director lies in their independence, and where that independence is eroded — by long tenure, by close personal ties to the executives, by financial interests, or by a board culture that rewards loyalty over challenge — the oversight function is hollowed out. A NED who is reluctant to disrupt relationships, or who has been on the board so long that they identify with management rather than scrutinise it, provides the appearance of independent oversight without the substance.

Information asymmetry. Non-executive directors depend on what management chooses to put in front of them. Where board papers are selective, over-optimistic or opaque, even a capable and independent NED is working blind — scrutinising a curated version of reality. Weak boards accept the information they are given; strong ones insist on the information they need, and treat a pattern of thin or reassuring reporting as a warning in itself.

Insufficient time and engagement. Oversight is work. A non-executive director who treats the role as a title rather than a responsibility — who arrives underprepared, holds too many other positions, or engages only at the meeting itself — cannot provide real scrutiny. Governance failures are frequently preceded by boards whose non-executives were, in practice, disengaged.

A culture that discourages challenge. Perhaps the most insidious weakness is cultural. A board dominated by a forceful chief executive or chair, where dissent is treated as disloyalty and consensus is prized above scrutiny, will suppress exactly the challenge the non-executives are there to provide. In such a board, a NED’s silence is not agreement — it is the failure of the oversight function itself.

The UK Cases: What the Inquiries Found

These are not abstract risks. The major UK governance failures of recent years each illustrate weak non-executive oversight in action, and in each case the official post-mortems said so directly.

Carillion (2018). The collapse of the construction and outsourcing giant is the defining recent example. The joint parliamentary inquiry by the Business and Work and Pensions Committees was scathing about the board, concluding that the non-executive directors had failed to provide any meaningful challenge to a reckless executive team, had accepted optimistic accounting and rising debt without adequate scrutiny, and had presided over aggressive dividend payments even as the company’s financial position deteriorated. The oversight function had, in effect, not operated. Carillion is the clearest illustration in modern UK corporate history of governance failure beginning with weak non-executive oversight.

BHS (2016). The failure of BHS, following its sale for a nominal sum and subsequent collapse with a large pension deficit, prompted another parliamentary inquiry that raised serious questions about the effectiveness of board oversight and the independence of those who were meant to scrutinise the transaction and the company’s finances. It became a case study in how governance and oversight can fail to protect stakeholders — in this instance, thousands of pensioners.

Patisserie Valerie (2018–19). The café chain collapsed after the discovery of a significant accounting fraud that had gone undetected. The episode raised pointed questions about the audit committee and the board’s financial oversight — how a fraud of that scale could persist without the non-executives, and the audit committee in particular, identifying that something was wrong. It underlined that an audit committee is only as effective as the financial expertise and scepticism of the non-executive directors who sit on it.

The common thread across all three is not exotic. In each, the non-executive directors were in place, the governance structures existed on paper, and the safeguards appeared to be present — but the substance of independent, expert, engaged challenge was missing. The structure of good governance is not the same as the practice of it, and the difference is the quality of the non-executive directors.

The Consequences Run Wider Than the Company

When oversight fails, the damage extends far beyond shareholders. Carillion’s collapse cost thousands of jobs, disrupted public services and left a large pension deficit; BHS left pensioners exposed; Patisserie Valerie’s failure hit employees and suppliers. Governance failure is not a private matter between a board and its investors — it reaches employees, customers, suppliers, pension schemes and, where public contracts are involved, taxpayers. This breadth of consequence is precisely why independent oversight matters, and why its failure is treated so seriously by regulators and parliament alike.

It is also why the reputational and regulatory stakes for non-executive directors have risen. In regulated sectors, the FCA’s Senior Managers and Certification Regime now attaches personal accountability to senior board roles, including the chairs of the audit and risk committees. The expectation that non-executives will provide genuine oversight is no longer merely a matter of good practice — for many firms it carries direct regulatory consequences.

Prevention Starts With Appointment

If weak oversight is the common cause of governance failure, then the prevention begins earlier than most boards think — at the point of appointment. The weaknesses that lead to oversight failure are largely a function of who sits on the board. Lack of expertise is an appointment problem. Compromised independence is an appointment problem. A board culture that suppresses challenge is shaped, more than anything, by who is brought onto the board and who is asked to chair it. Get the appointments right and most of the failure modes are addressed before they can arise.

This means appointing non-executive directors with genuine, relevant expertise — particularly financial expertise on the audit committee, where the Patisserie Valerie and Carillion cases show the cost of its absence. It means appointing directors who are genuinely independent, and refreshing the board before long-serving members lose their edge. It means valuing, in the selection itself, the temperament to challenge — the willingness to be the awkward voice in the room — rather than only collegiality and fit. And it means taking committee chair appointments as seriously as they deserve, because the audit, risk and remuneration committee chairs carry the sharpest end of the oversight duty.

This is precisely where a rigorous, expertise-led appointment process earns its value over an informal one. Appointing from the chair’s personal network — the pattern that recurs in failed boards — tends to reproduce the board’s existing blind spots and its existing reluctance to challenge. A proper search, assessing candidates against the specific expertise and independence the board actually needs, is a direct safeguard against the oversight failures examined here. At NED Capital we assess candidates for exactly these qualities — the expertise, independence and willingness to challenge that distinguish a non-executive director who genuinely strengthens oversight from one who merely fills a seat. Every search is led personally by Adrian Lawrence FCA, himself a Fellow of the ICAEW and former finance director. To discuss strengthening your board, our NED recruitment service is the place to start, and our guide on how to appoint a non-executive director sets out the process in more detail.

NED Capital | Sister practice of FD Capital | ICAEW practising certificate held by Adrian Lawrence FCA.