Archetypes for a cross-functional and diverse team of search advisers?

When building a team of search advisers, it makes sense to bring in different perspectives. Really, how many overlapping opinions from bankers and PE folks do we need?

Question: When advising on the search process (not board members for operating a firm after acquisition), what archetypes do you want to make sure are included in a group of advisors? Particularly looking for thoughts beyond the obvious buy-side deal experience.

Cheers!