Inflated savings or revenue synergies justify a politically motivated acquisition, and the promised number then becomes the means of forcing integration cuts on anyone who resists.
An example
Under pressure from the board over two years of flat growth, a health system's chief executive announced the acquisition of a smaller rival system with $120 million in annual synergies by year three. The number went into the bond disclosure and the press release. The acquired system's chief financial officer had been in the room when it was set: the integration consultants had started at $70 million and been asked to find more. There was no bottom-up bridge, and most lines had no named owner. A year after close, the integration office assigned her a $38 million target for consolidating the acquired hospitals' laboratories, pharmacy, and two outpatient clinics. When she showed that closing the clinics would send patients to a competitor, the integration head said she was failing to deliver commitments made to bondholders.
Why it works
Inflated synergies make the deal look better: the price pencils out, and every supporter gets quotable upside. Once the number is in public guidance, a modest integration looks worse, framed as underdelivering to investors. And resisting the cuts becomes costly, because the resister now stands accused of failing to deliver promised synergies, a charge that ends the strategy argument. The mirage depends on a credible projecting team, a calculation opaque to non-financial staff, a long gap between commitment and verification, an acquired company with no platform to dispute the numbers, and markets that punish deal failure more than doubtful assumptions.
The thinking behind it
Daniel Kahneman Anchoring, from Judgment under Uncertainty: Heuristics and Biases (1974), written with Amos Tversky: people estimate by adjusting from a starting value, and the adjustment is usually too small. A headline synergy number set at announcement becomes the anchor for every later target, and challenges move it only a little. An independent bottom-up review before the number is published works because it sets a different anchor.
Barry M. Staw Escalation of commitment, from Knee-Deep in the Big Muddy: A Study of Escalating Commitment to a Chosen Course of Action (1976): people personally responsible for a course of action that went badly committed the most additional money to it, which Staw read as self-justification. A chief executive who promised the synergies is the worst-placed person to judge them. Review by someone without that responsibility is the way out of the cycle.
Warning signs
Synergy totals arrive as round headline numbers, with no bottom-up bridge and no named owner for each line. The number appears in market-facing guidance or disclosures before integration planning has begun. Comparable deals have realized far less. After close, the total is handed down as targets, and anyone who questions a target is described as failing to deliver.
How to defend yourself
The time to act is before the commitment. Once a deal closes, the number cannot be argued down. It can only be missed, written down, or buried under later events.
- Push for an independent synergy review before approval, with each line built bottom-up and owned by a named person.
- Compare the projection with what comparable deals have realized.
- Ask that executive pay be tied to the synergies realized.
- After close, document line by line what each cut costs in patients, customers, or revenue.
The longer the gap between promise and verification, the more the number gets used against resisters, so press for early verification.
How a leader shuts it down
Commission independent review of synergy projections before approval, with bottom-up lines and named owners, and reconcile them against comparable deals. Tie compensation to realized synergies. Treat integration managers who show the hidden cost of a target as sources of information. A number set to win a deal should not become the measure of everyone who has to live with it.