I'm not sure how useful it is to compare a chess grandmaster to the relatively ordinary (other than fumbling) Patriot running back contingent, past or present.

I'm not sure how useful it is to compare a chess grandmaster to the relatively ordinary (other than fumbling) Patriot running back contingent, past or present. If Carlsen were found with an extra pawn on the board, that might raise eyebrows. I understand that Belichick has a doghouse for backs that fumble. The point seems to be that his doghouse is likely to be rarely occupied since 2007, and whether that is due to coaching, drafting backs with good hands, or something less wholesome. I appreciate the points on Maroney and Ridley.