It seems to me that the most important component of the future-of-the-program discussion is the influence of Aon founder Pat Ryan, whom I believe has given nearly $1 billion to Northwestern over the years and has outsize influence over the athletics program. Just skimming the Northwestern SB Nation site comments about the Fitz fiasco the prevailing attitude among fans/alums is that the athletic department is a dysfunctional mess. Fitz was viewed to be coasting and untouchable after that #10 national finish three seasons ago and his 10-year extension, and Ryan apparently supported him.
I agree with others who have noted that NW, given its sporadic success over the past 15 years, and resources, is not an unattractive spot. However, it seems that Ryan might have an outsize say in who gets the job and how long a leash he has. and that his influence might not be in the best long-term interests of the program.