If nothing else, imagine the look on Pat Shurmur’s face. The Broncos’ offensive coordinator is in his office, twiddling his pencil, sketching out incompletions, when someone bursts open the door. “Pat! Pat! Pat, they traded Teddy.” Shurmur stops twiddling. The pencil drops. “Who did?” “We did. George did.” “What?” “Drew is starting in Dallas.” With that, everything snaps.