Didn't boosters largely pick up the bill for his pay raise and buyout that doubled from $700,000 to $1.4 million? I'd be looking squarely at some of those boosters who are looking to save themselves $700,000 in addition to a faction of RU athletic department admins who likely feel the same. Especially those who told him directly not to contact faculty.
That said, if they are a linch mob out to get him, Flood went out, bought the rope, and handed it to them. It's well known that as a coach, you don't contact professors directly regarding students. Flood damn well knew that and did it anyway. If there is evidence and those quotes from sources are true (I'm always skeptical of unnamed sources with an agenda), not only did he break a clear policy, but he did so after getting fair warning and being told directly to "drop it".
IMO, this should be a suspension worthy issue and likely trigger an NCAA review (that would likely result in nothing), but there are CLEARLY some powerful people that want him out. As an outsider, I think all RU fans should want him out. The guy is never going to recruit well enough to compete in the BigTen East against Harbaugh, Franklin, and Meyer.
RU's financials are in such bad shape, they can't afford to sit around and let him continue to bring in classes ranking in the 50's and being lucky to win 7 or 8 games a year. If RU wants to play with the big boys and have a big boy budget, they need to find a way to cover it with revenue. Taking upwards of $35 million from the university, student fees, tax payers, etc per year to sit at the big boy table is not sustainable and the only way to increase revenue is to win. You won't do that in this league with his recruiting. I know he's a nice guy (except when blatantly breaking university policy), but he's not your answer guys. College football is 90% about recruiting and he doesn't have it.