Snyder is just as bad as Prince at retaining assistant coaches. Snyder's two best hires after making his lame return were Ludwig and Koenning, and both were gone within a year. Ludwig stuck around long enough to eat lunch at Harry's before he bolted for Cal, and Koenning left K-State for another sinking ship program the first chance he got.
The only coaches Snyder can keep are ones nobody else wants. Cosh is just as bad, if not worse, than Tibesar. The rest of the staff should go nameless, with the exception of maybe Charlie Dickey, perhaps the only coach on the staff who could get a better job elsewhere.