It feels kinda absurd that we're discussing the possibility that a coach knowingly let his franchise QB, who the team already mortgaged its future for, play on an already-torn ACL... in any circumstances, let alone on that field. Really a testament to how inept the Redskins are, from top to bottom, that this is even a debate.
I think it's also a testament to one of the greater benefits of having a coach with job security. If Shanahan doesn't qualify for this ('five year plan' and whatnot), then I think we can safely say that Belichick is the only coach in the league, at this point, who truly has it. You think Belichick would risk the franchise with that kind of short-term (or no-term) thinking? Of course not. He has the luxury of thinking in the long term, because he knows he's going to be here until he no longer wants to be here.