Choosing a Digital Transformation Consultancy

At this scale the risks are not the ones you get with a small supplier. Four specific things go wrong, and all four are visible before you sign if you know where to look.

Digital transformation consultancies are bought differently from most suppliers. The engagement is large, the buyer is usually a committee, the deliverable is often a document rather than software, and by the time anyone can tell whether it worked, the people who chose the firm have frequently moved on.

That combination produces four failure modes that are specific to this scale. All four are visible before you sign, and none of them are about whether the firm is any good.

1. Work out whether you are buying advice or delivery

This is the first question and it is asked far too late.

Advice is analysis, a target operating model, a business case, a roadmap. It ends in a recommendation. Delivery is people doing the work: building, integrating, migrating, changing how a department operates. It ends in something different existing.

Most consultancies sell both. Very few are equally good at both, and the commercial incentive runs one way: an advisory engagement that recommends a large delivery engagement is a good outcome for the firm regardless of whether it is a good outcome for you.

You do not need to be cynical about this, but you do need to name it. Ask directly whether the firm expects to bid for the delivery work the strategy recommends, and what happens if the answer is that you should do less than you thought. A firm with a clear position on that question has thought about it. A firm that finds the question awkward has also thought about it.

2. Establish who actually does the work

The oldest problem in consulting, and still the most common: sold by partners, delivered by graduates.

You are not entitled to the person who ran the pitch, and expecting it is unrealistic. You are entitled to know the shape of the team. Ask for:

The named individuals on the engagement, their seniority, and how much of their week you get
The blended day rate, and what it is blended from. A single blended figure can hide a team that is 80% junior
What happens if a named person leaves, which on a multi-year programme is a when, not an if
How much of the delivery is subcontracted, and to whom

None of these are unreasonable, and all of them are commonly left vague. Vagueness here is not an oversight. It is flexibility the firm is preserving for itself, and it costs you at the point when the team quietly changes.

3. Stage it so that stopping is possible

The single most valuable structural feature of a large engagement is a point at which you can stop without it being a catastrophe.

Programmes that cannot stop do not fail cleanly. They absorb budget, accumulate sunk-cost arguments, and eventually deliver something that satisfies the contract rather than the need. The reason is rarely bad faith: nobody wrote down, at the beginning, what a legitimate early ending would look like.

So write it down. A workable structure has:

A short, separately-priced first stage with a defined output you could act on alone
A decision point after it where continuing is an active choice, not the default
Agreed criteria for that decision, written before the first stage starts
Ownership of everything produced so far, unconditionally, whichever way the decision goes

Firms that work this way will say so quickly. Firms that will not are telling you something useful.

4. Do not buy a strategy nobody executes

The characteristic waste at this end of the market is not a failed system. It is a well-researched, entirely reasonable strategy document that is never acted on, because it assumed a level of organisational appetite that nobody tested.

The tell is in what the recommendation rests on. Interviews, workshops and benchmarking tell you what people say they will do. That is a genuinely different thing from what they do, and the gap between them is where transformation programmes disappear.

Before you commission a large piece of strategy work, it is worth spending a very small amount finding out whether the central assumption survives contact with the people it depends on. A working prototype of the changed process (real enough that the people whose jobs change can use it for a task they recognise) produces evidence of behaviour rather than of intention. It costs from £750 and takes five days, which against a six-figure engagement is close to free.

That is not an argument against hiring a consultancy. It is an argument for arriving with one thing already known, so the engagement is scoped around a fact rather than an assumption. How to build a digital transformation roadmap sets out where that evidence fits in the sequence.

Public sector and framework procurement

If you are buying through a framework (G-Cloud, the Digital Marketplace or similar) most of the above still applies, with two additions.

The framework has already filtered for the things frameworks filter for: financial standing, insurance, basic capability. It has not filtered for fit, and the shortlist it produces will look more homogeneous than the firms actually are. Your evaluation still has to do the work.

And because framework procurements are scored against a written specification, the specification carries more weight than it does commercially. Anything vague in it will be answered in the bid in whichever way is cheapest to deliver. It is worth disproportionate effort getting that document right, and evidence from something real is the most efficient way to write a specification you can defend.

What good looks like, briefly

Clear about whether they are advising or delivering, and about their interest in the answer
Specific about who does the work, at what seniority, for what proportion of the week
Comfortable with a small first stage and a genuine decision point
Willing to recommend that you do less
Interested in what the people affected actually do, not only what the leadership says

If you are buying a smaller engagement (a product, a prototype, an MVP rather than a programme) the evaluation is a different exercise, covered in how to choose a prototype agency in the UK.

The bottom line

At this scale you are not really choosing a supplier. You are choosing how much of your organisation's next two years gets committed on the strength of a document.

Make the first commitment small, make the decision point real, know who is doing the work, and get one piece of evidence about behaviour before you buy a strategy built on assumptions about it.