My experience of having been through 3 acquisitions: the person driving the process from the acquirer who says nothing will change genuinely believes it. But a

My experience of having been through 3 acquisitions: the person driving the process from the acquirer who says nothing will change genuinely believes it. But a year later he will have moved on to his next role and the business unit the aquiree became now reports to a manager who doesn't see why you are "special" and should be treated any differently to her existing department. That's when things really change.