I way this thing usually goes is a coordinator or two gets canned, then halfway through the season, the coach gets canned, then 3/4 mark or at the end of the season, the GM gets canned.
As far as players, we have some core guys that you certainly want to keep through a rebuild, like Filer, Simoni, Tasker, Collaros, Revenberg, Laurent (if his salary isn't outrageous) and Chick. Kanneh and Butler when they get healthy are also keepers.
I for one am blaming the Cat's current woes, less on coaching and more of personnel. I think we are missing some needed parts, especially if we are going to run an offense as pass happy as we've been.