The Minnesota Vikings took an interesting tact by holding onto second-year signal-caller Max Brosmer through the initial 53-man roster cuts, then waiving him the following day. At first it seemed the team’s decision could be in response to questions about JJ McCarthy’s future, as the former first-round pick and injured QB was the subject of swirling trade rumors after the Vikings decided to roster four quarterbacks. However, Albert Breer of Spor…