Most Acquirers Can't Run What They Buy
Most acquirers shouldn’t be allowed to operate the businesses they buy.
They’re good at buying them, often brilliant at it. They can run a process, model a deal, push back on the seller’s numbers, and maintain their nerve through a tense Investment Committee. The people who do it well are some of the sharpest dealmakers I’ve ever worked with. But the day after the wire clears, you take that same team and ask them to actually run the thing they just bought, and most of them aren’t up to it.
To be clear, these are enormously smart people. But … they’re just as prepared to operate the business as a surgeon is to fly the plane home from the annual conference. Different muscle, different reflexes, and the Private Equity industry has spent thirty years pretending it’s the same job because pretending is easier than rebuilding the team between buying the business and running it.
I’ve been in enough of these deals to stop being polite about it. Here’s what actually happens in the first fortnight after closing, and I’ll spare you the diplomatic version. The team that spent six months earning the right to own this thing, the one that argued about synergies until two in the morning, that flagged the customer concentration risk in red on the IC memo, that pushed back on the seller’s revenue quality until the seller cracked and showed them the real numbers … that team quietly disappears. They’re still in the building. They still come to the Monday meeting. But the useful version of them is gone, replaced by something much quieter.
The synergies they argued about have become numbers they’re expected to deliver. The risks they flagged are now things you don’t say in front of the seller’s team, and increasingly things you don’t say in front of each other either. The model that everyone in the room privately knew was optimistic is now a budget, and a budget, in case you’ve forgotten, is a thing you defend rather than a thing you question. Meanwhile the founder who sold his business watches all of this with the polite expression of someone who’s been paid a lot of money and can afford to be patient.
This is where most acquisitions actually die. Not at the synergy meeting twelve weeks later when the first numbers come in soft, and not when the second integration milestone slips and the PE firm starts asking pointed questions on the monthly call. It happens here, in the quiet shift from a team hunting answers to a team protecting a position, and it happens before anyone has even ordered the new letterhead.
The strange thing is how hard it is to spot from the outside, because nothing visibly goes wrong. Everyone is still working hard, the integration plan is being executed, the PMO is established, the kickoff meeting went well, and the founder was charming over dinner. From every angle, the deal looks on track. It just isn’t … and the people who would normally tell you it wasn’t have decided, by collective and unspoken agreement, to stop saying so.
The reason is this. The synergy lie isn’t really about the synergies, and it isn’t a forecasting problem. The numbers in the model were never going to be perfectly right, and anyone with operating experience knows that going in. The good firms even price for it. The real problem is what happens to a roomful of intelligent adults the moment the deal is theirs to own.
Owning something feels like it should bring certainty, so asking questions starts to feel like admitting you bought a business you don’t fully understand, which is not a great look in front of the firm that just wrote a nine-figure cheque on your recommendation. The seller’s team is watching, and a tough question can land like an accusation when you’re the one who just signed the SPA. The PE firm is reading the first month’s numbers a little too closely. The board is asking when the first synergy capture comes through. And in that climate, the safest thing in the room is to act like the deal model was always real.
So you stop looking at it. Nobody formally says “let’s stop interrogating the thesis.” It just happens. The diligence team gets stood down because the deal is done and there’s a new mandate to chase, and the questions that used to get asked in the IC room are now considered inappropriate for the integration room. The team picks up the rhythm of ownership and quietly forgets the rhythm of inquiry that got them there.
I know this because I sat in those rooms. I sat next to CFOs I respected, watching slides go up with numbers I knew were optimistic because I’d run a similar play in a different deal eighteen months earlier and watched it not work. I had the relationships in the room to say something, the credibility to be heard, and the actual numbers in my own head to make a serious case. More than once, I said nothing.
I’ll tell you exactly why. Pushing back at that point in a deal isn’t free, because the deal had been won, the narrative had been set, the firm had committed, and the seller had signed. Raising a serious challenge to the model in week two of ownership doesn’t make you look diligent, it makes you look like the person who’s about to be a problem for the next six months. Especially when you’re right. Think Jerry Maguire!
So I stayed quiet, and the model stayed unchallenged, and eighteen months later the synergy capture was running at about forty per cent of what we’d promised the LPs. Not because the work was bad. The integration team executed beautifully against the plan they were given, but the plan was based on a thesis nobody had been willing to stress-test once it became inconvenient to stress-test.
Smart people stay quiet in those rooms not because they’re cowards but because the incentives are structured to reward silence, and anyone who tells you otherwise has either never been in the seat or is selling something.
I worked with a small handful of acquirers who were genuinely brilliant at the first ninety days, and they all did one thing that almost nobody else did. They treated the deal model as wrong by default, and they made the first ninety days about finding out exactly how wrong.
They didn’t celebrate close, they didn’t throw the team a party, and they didn’t reset the diligence work and pivot to integration as though those were two separate jobs. On day one of ownership, they returned to the business with the same temperament that had won them the deal: curious, sceptical, and honest about what they didn’t know. The acquired team felt it within a fortnight. You could tell, very quickly, whether you’d been bought by people who were going to keep asking questions or by people who’d already decided the answers. The first group built value, and the second spent the next two years explaining to their LPs why the model was always going to be harder to hit.
What it looked like in practice was unglamorous. They kept the diligence team in the room past close, paid them, fed them, and gave them permission to keep pulling at threads even after the deal had been wired. They named the soft assumptions out loud in week one, in front of the acquired leadership team, which sounds like a small thing but completely changes the temperature of the building. They treated synergies as hypotheses and ran them like experiments, with owners and timelines and the explicit possibility of failure baked in. They protected disagreement, and they went looking for the bad news, every Monday, on purpose.
None of it was clever, and all of it was hard, because every one of those behaviours runs directly against the gravitational pull of the first ninety days, which wants you to bank wins, project confidence, and act like the deal you bought is the deal you described to your investors. The acquirers who beat that pull aren’t smarter than the ones who don’t. They’ve just made peace with the fact that the wire isn’t the end of buying, it’s the start of buying with real money on the table. The first ninety days isn’t integration. It’s diligence you can no longer walk away from.
That’s the key reframe here, and that’s the actual job. If you’re sitting somewhere right now in the first weeks after a deal closes, and the team around you has gone quiet, and the questions have stopped, and everyone in the room has started acting like the model was always right, you already know which kind of acquirer you’ve become.
You just have to decide whether you’re going to be the person willing to ask the question everyone else has agreed not to ask.
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