What if—as an individual—your genetic code suddenly changed by, say, 20 percent?

How different a person would you be? If the change happened overnight, would you even recognize yourself the next morning? What would it feel like? How would you behave?

That’s what happens when, for example, a 4,000-person company acquires and integrates a 1,000-person firm. The acquirer’s cultural DNA will be reconstituted as it absorbs the new employees. Immediately when the deal closes, one out of every five people in the workforce will be from a firm with a different genetic code.

Can anyone doubt that the immigrants will leave their cultural mark on the land of the parent company?