Cutler was ducking, Refs have to be able to understand the play as it is happening. If he was standing in pocket and it was helmet to helmet, fine. But Cutler in middle of ducking to get away from rush put himself in that position.
he had his cutler lined up perfectly until cutler dropped and turned into him. nothing he could have done to stop that. good play by lee negated by unfortunate circumstances
Mo Wilkerson mad the tackle, because he fell down at the line, and had no choice but to take the angle on the tackle. I'm sure he appreciates the compliment from Spielman, nonetheless.