The Combined Leadership Team
Last to integrate. Most expensive to ignore.
Merged on Paper. Not in the Room.
We’ve all heard stories of the teams, that years after the acquisition is done, introduce each other by their previous company’s name. “I’m from Citi” “I’m from Chase.” I know I’ve experienced it post merger.
Integration plans after a merger are usually thorough on systems, processes, and org charts. They are almost never thorough on whether the combined leadership team can actually operate as one team.
The Combined Team Gap
The gap between a truly combined team and two factions that are working together, tends to begin to surface three to six months after the deal closes. The initial goodwill has worn off and real decisions like budget tradeoffs, aligning conflicting priorities, and decisions about whose process becomes the standard need to be made. The leadership groups need to function as a single unit rather than two groups sharing a company name.
A few things tend to be true of combined teams that are struggling, even when the org chart looks clean:
- Decisions quietly default to “our side” and “their side” rather than a shared standard, even months after the deal closed.
- Trust that took years to build on each legacy team has to be rebuilt from zero across the combined group, and nothing in the integration plan accounts for that timeline.
- Disagreements that would have been resolved directly within one legacy team get escalated instead, because the norms for how this new team handles conflict haven’t been established yet.
None of this shows up in an integration checklist.
It shows up in how the combined team actually makes decisions together, resolves conflict, has honest conversations, and tackles tough issues. How do you identify it? With a systemic read of the new team rather than an assumption that good people will sort it out.
The cost of leaving this question unasked isn’t a single bad quarter.
It’s a leadership team that never fully integrates, well after the systems did. And the longer that gap persists, the more the organization learns to work around the team rather than through it — building informal workarounds, duplicate processes, and shadow coordination structures that quietly drain capacity and compound the original cost of the deal.
How much has an unintegrated leadership team cost your merger or acquisition?







