Given that it is no longer a question of if Shanahan will be gone, but a question of when, who should be the next coach? I've posted on here before that Snyder needs to hire an up and coming coach who will be hungry for success, not a formerly successful coach who has already made an impact. So aside from the obvious choices such as David Shaw and Greg Roman, who would be a good fit?
One name that comes to mind is Corey Chamblin. Who, you ask? The current head coach of the Saskatchewan Roughriders, CFL champions. The success of Trestman coming from Canada shows it can transfer. Chamblin is a defensive coach, rising through the ranks first as a defensive back coach, then a coordinator, and has been the head coach for two seasons, compiling a 19-17 record. This would not be a slam dunk hire by any means, but he would be hungry to prove himself and he would come cheap. Chamblin would also fulfill the Rooney Rule requirements, and could very well be a Mike Tomlin-like hire (hopefully with better sideline awareness).
Rob Ryan has no head coaching experience, but has done a good job getting the most out of sub-par talent as a defensive coordinator. He would be more in the mold of a Snyder hire. I feel like he would "Peter principle" pretty quickly, but Rex has been pretty successful, despite a circus. Rob seems a bit saner (which isn't saying much) but I still wouldn't feel real good about that hire.
Who are some other outsider candidates that might warrant a look, if not an interview?