Oh waaaaahhhhhhh, this is exactly the type of cryabay attitude I'm talking about. He left after 5 straight winning seasons & one year removed from 4 years in the playoffs. What was he supposed to do? Stay here for another 4 to 5 years and work through the salary cap to make you guys happy? You would've been calling for his head anyway. If he had gotten the team ready for a Super Bowl run and THEN resigned, would that have dried some tears? No---the pouting only would've intensified. And it doesn't matter who he "recommended", it was never his decision.
My recommendation for you guys is to try and be grateful for the 16(!) seasons he was here, and maybe re-direct your anger/petulance/sulking to something more worthy---like an ex-girlfriend, or a neighbor who bought a new car, or someone who cut you off in traffic, etc