Fit is very important in college football. There are unique institutional and regional challenges to every job and if a coach is not prepared for those challenges, he is constantly battling up hill. For recent examples you can look at Chris Ash never connecting with New Jersey high school coaches and their recruits at Rutgers or the already awkward relationship between Joe Moorhead and the Mississippi State fanbase.
But you have to be careful when considering fit. You don't want to overlook someone just because he hasn't played or coached at your school. For me, I want someone who understands the type of challenges BC faces, but also understands how to leverage its advantages.