Three blasts of the air horn bring satisfaction to the Washington Redskins players. The trio of alerts means practice has ended, they can step out of the heat and wander back into the main building at Redskins Park. That is, if they are not part of Bill Callahan’s offensive line. For that group, the horn merely delivers respite before reassembly. A full team meeting takes place, dozens of players turn toward the locker room and, like a batch of troublemakers, the offensive linemen shuffle in an opposite direction to an adjacent field for more work.
Demanding Bill Callahan focused on reshaping Redskins' offensive line - Washington Times