The Second Opinion Portfolio: A Contingency Approach to External Advice
The temptation for a growing UK business is to anoint one consultancy as its outside voice. The relationship is comfortable, the firm knows the history, and a partner can be reached without ceremony. That arrangement works until it does not. A transaction appears, a director dissents, or the trusted adviser has a conflict that nobody noticed. At that point the organisation discovers it has a relationship, not a source of comparison.
A second-opinion portfolio is a small set of external advisers chosen in advance for different kinds of judgement. It is not a procurement exercise, a framework agreement, or a collection of retainers. It is a contingency: two or three firms whose partners know enough about the business to offer a credible view at short notice.
The single-adviser default
In UK SMEs, external advice often arrives through one door. The founder knows the consultant, the consultant knows the finance director, and the arrangement has survived several strategies and at least one rebrand. Loyalty is understandable. It is also a concentration risk.
One perspective can become a habit. The consultant's diagnostic lens starts to shape which questions are asked, and which are quietly dropped. Conflicts may be managed honourably but they are rarely advertised. Capacity is another issue: the adviser who is excellent in a calm quarter may be unavailable when a decision arrives at speed. None of this is misconduct. It is simply what happens when a business relies on a single source of external judgement.
The answer is not to distrust the incumbent. It is to build enough comparison that the incumbent's advice can be tested without drama.
What a portfolio is, and is not
A second-opinion portfolio is deliberately modest. Three firms is usually sufficient for an SME: one close to the sector, one stronger on operating models or delivery, and one that can speak to data, technology, or finance where those questions are material. The mix depends on the decisions the business expects to face, not on a desire to collect impressive logos.
It is not a panel that must be re-tendered every year. It is not a preferred-supplier list that implies volume. It is not a way to play firms against each other on price. The purpose is contingency and comparison, not competition for every brief. A portfolio that creates administrative work has been overbuilt.
Choosing for difference, not decoration
The selection test is practical: for which decision would this firm give a materially different view from the incumbent? If the answer is unclear, the firm is decoration. A useful portfolio contains advisers who disagree well, not advisers who echo the same framework in different branding.
Practical checks help. Ask each firm to describe a recent occasion when it advised a client against the client's initial instinct. Ask how it handles conflicts and confidentiality when another adviser is already in place. Ask whether a named partner would take the second-opinion call, rather than a business development lead. References should be taken from clients who used the firm for a contained piece of work, not only for long programmes.
Chemistry matters, but it should not be the only criterion. The portfolio needs firms that can be direct without being theatrical, and concise without being shallow. A bench of three good listeners is less useful than two who will challenge a board paper and one who can test the numbers.
Light-touch terms for the second opinion
The mistake is to convert a contingency into a contract. A one-page note is usually enough. It should name the partner who will respond, set a response window such as five working days for an initial view, define the boundary of the second opinion, and state how fees will be charged. Time and materials with a capped first conversation is often the cleanest basis.
Confidentiality and conflicts should be addressed in the same note. The firm should confirm that it will not accept a competing engagement without discussion. The business should confirm what information can be shared and what must remain inside the board. These are not legalistic flourishes; they are the conditions that make a quick call possible.
The note should also say what the second opinion is not. It is not a full diagnostic, a delivery commitment, or a substitute for the incumbent's work. Clarity at this stage prevents a small request from becoming an accidental programme.
Paying for readiness, not retained capacity
A portfolio does not require retainers. Retainers buy committed capacity, and most SMEs do not need committed capacity from three firms. They need the ability to ask a good question and receive a considered answer within days.
A small annual briefing fee can be justified if it buys a partner half a day to stay close to the business. But the fee should be tested against use. If the firm has not been called in two years, the relationship may be warmer in theory than in practice. Paying for readiness is reasonable; paying for unused capacity is not.
A simple log helps. Record when each adviser was last consulted, what the question was, and whether the view changed the decision. The log is not a performance scorecard. It is a reminder of whether the portfolio is alive or merely filed.
A quiet annual review
Once a year, the board or managing director should review the portfolio without ceremony. Which firms are still complementary? Have conflicts emerged? Has the incumbent become so dominant that the others are no longer credible? Is there a gap in financial or operational judgement that the current three cannot fill?
The review should take less than an hour. Its output is a short note: keep, replace, or add one firm. That is enough. The point is not to build a procurement asset. It is to keep outside judgement available before it is urgently needed.
A business that waits for a crisis to look for a second opinion will usually choose under pressure. A business that keeps two or three capable firms warm can compare, test, and decide with less theatre and more confidence.