Former New England Patriots quarterback Matt Cassel dropped an article that hinted on the idea that coach Bill Belichick had loosened his typical ruling with an iron fist on players’ comments to the media. There have been remarks touching on concerns and uncertainties with the way the offense is being handled. FOX Sports analyst Colin Cowherd took things a step further by saying the six-time Super Bowl-winning head coach had changed. He pointed to the success, money and age being the primary culprit in the metamorphosis of Belichick. Well, former Patriots assistant coach and former NFL head coach Eric Mangini disagreed with those comments, during an appearance on “The Herd.”…