In this hour of The Herd with Colin Cowherd, Colin explains how there has never been a quarterback with a personality like Andrew Luck's--he shies away from the spotlight--so it's hard to tell if the news murmurs about him coming back have any validity at all. Plus, NFL analyst and senior producer at NFL Films, Greg Cosell. Finally, Buffalo Pro Bowl wide receiver Stefon Diggs talks about his breakout season in new home Buffalo, the great character of quarterback Deshaun Watson, and Buffalo quarterback Josh Allen's talent.