I guess everyone's different.
I've held (and practiced) a life-long philosophy of very seldom buying anything from people with a "salesman" persona. Instead, I prefer those who are sincere and who show an interest in me. I got that vibe from both Walters and Bielema in their introductory press conferences. (And I think this approach will work really well with recruits.)
Of course, having a good product to sell helps immensely too!