With a distributed function structure the person-related retention is less critical.
If the value is spread across many functions and the company is not owner-centric, the retention of individual key persons is less critical. Even so you should identify the key roles, check their backup situation and watch for change-of-control clauses in employment contracts. A deeper look at the transition of the workforce is offered by the post on the transfer of business under AVRAG.
A short review of the contracts shows whether existing termination rights or special bonuses are triggered on a change of ownership. This is often the inconspicuous place where value is lost.