Seriously, this is a real issue. Founder's syndrome is a real thing in organizational dynamics. Sometimes there are exceptions, but largely the leader who follows the founder (legend, etc.) is un- or under-whelmingly successful unless they orchestrate things just right (which includes the founder endorsing - unconditionally - the successor).
The experts all advise for an "interim-CEO/leader" type of a person and I concur. I'd recommend that this person come from the existing staff or from a very "trusted" part of the Snyder coaching tree and be very clear that he will not pursue the long-term gig. (note that I think Jim Leavitt has this type of skillset, he build USF from the ground up and KNOWS what a program needs to build and to sustain - plus I LOVE his defensive-oriented mentality; and for those who don't like him as the long-term HC, it takes him off the table; practical matter, I don't foresee him giving up his gig (at Oregon?) for this type of role)
This will cause some slippage in our already poor current recruiting effort, but it will do loads of good for our organization. The interim should have the full backing of the AD to make ANY changes necessary (including ousting a certain special teams coach/assistant head coach if it's warranted) for the long-term good of the program.
Let's do this! Rip the band-aid off and let's build for the future. I have no idea who the "right" interim or the "right" long-term Head Coach are; the great football minds on this board need to weigh in on that. For me, I'd still love to see Brent Venables from the long-term HC and see if he can do it. (at least it will end all speculation once he gives it a whirl)