Can they maybe review the defensive holding and PI rules and while we are at it, get rid of the stupid hitting the QB rule?  I don't mind the flag if they have like 4 steps and then hit the QB full tilt but a large majority of calls are stupid.  If they want to protect the QB, enforce the slide rule. Geez how many QBs have been hit after they start sliding. 

And excellent point BP, if you stop throwing flags, the game will move faster and less opportunity to make money through commercials. 

Marv Levy had one of my favorites to a ref "you over-officious jerk!"