Fiery presence

Mike Tomlin, the Vikings young defensive coordinator, makes his presence felt throughout practices. He roves around the field, checking out his different units, often leaning his chin on his right hand, in the thinking man's pose.
He also barks out constant commentary on players' execution, sometimes insisting they repeat the drill.
He also is very hands on, taking the snaps as a quarterback and seeing how his players execute plays.
One of his favorite lines so far to the linebackers: "You got to have violent hands."