McNair didn’t think Manziel would “fit in our system”

Cowboys owner Jerry Jones may regret passing on quarterback Johnny Manziel.  Texans owner Bob McNair apparently won’t. The Texans passed on Manziel with the first pick in the 2014 draft because, as McNair explains it, the Texans “had questions as to how well he’d fit in our system doing what we wanted to do.” McNair…