it was never about Sammys ability. It was about his availability. when it came time to give him a huge contract, the org decided that he wasnt reliable enough to invest in him.
the injuries while he was here, that soured most on Sammy. Sammys fault? mbe, mbe not. He's been lucky in his post Bills career so far, hes gone to 2 teams that actually have good offenses. Does Sammy help them? Sure. Is he the reason they're good? Nope.