I see PJ Fleck going to Purdue or possibly Oregon. I'm not sure I believe Venables even wants to be a head coach.
I don't think it's crazy that all three of them remain where they are. No one really knows but there are people around certain that Fleck is going to stay. If Purdue is the only P5 offer he gets he may not go, he's going to get another raise, he already makes more than Beaty. Purdue will need to give him a good amount of money, possibly more than they're comfortable with.
Venables isn't on anyone's list which isn't surprising given where the open jobs are. Houston makes the most sense but they likely can't afford him.
As for Snyder I think I've come to realize that he isn't going to have a planned retirement at all. When he leaves it will be sloppy and probably not beneficial to us, he'll have a health issue or he'll wake up at some point in June or something and figure out he doesn't want to do it anymore.