I guess Brian Schittenheimer didn't torpedo his career after all as he is supposedly being considdered as a candidate to replace Romeo Crennel as head coach in Kansas City. This article discusses all the coaches expected to be fired with their possible replacments, and while others get mentioned multiple times for different teams (Bruce Arians, Jim Caldwell, John and Jay Gruden, Hue Jackson) Brian only gets mentioned once.
2. Kansas City Chiefs – Romeo Crennel deserves a medal for what he has been through this season, particularly the murder-suicide involving Jovan Belcher. Sadly, his work as head coach fell far short of acceptable.
Possible replacements – Bruce Arians, Jim Caldwell, Ray Horton (Cardinals defensive coordinator), Jay Gruden (Bengals offensive coordinator), Kyle Shanahan (Redskins offensive coordinator), Brian Schottenheimer (Rams offensive coordinator).
Given how many HC's will probably be fired and who is available as replacements as well as the talk that is coming out, I think it is highly unlikely that Rex will be fired and even if he is or will be in the future his career as a HC is far from over.