http://www.charlotte.com/mld/charlotte/sports/football/nfl/carolina_panthers/14189897.htm Apparently the NFL may allow one defensive player to have a radio in his helmet just as they do with the QB, enableling them to recieve plays called in from the sidelines. So who in your opinion would be the QB of the Defense at least for the purpose of signal calling and making changes at the line? My initial vote goes to Bruschi, as I think he generally assumes this role anyway. But since Bruschi seems to have knack, and probably the trust of the coaches, for making adjustments I almost wonder if it wouldn't be better to have another player - Vrabel perhaps - have the coach's voice in his ear and free up Brushchi to focus on changes on the line. One probably needs to give this role to a player who is going to be on the field for a majority of the snaps, and I guess we have to determine whether Bruschi can keep up that role. I'm probably overthinking this too much. Bruschi's probably the no-brainer on this. Generally I would think that a LB needs to be your field marshall as well, as a DE like Seymour is probably too close to the line to see last minute changes. But a Safety would probably be ok too as they are behind all the action and are generally looking forward to a large degree.