I think there is an issue, somewhat, with QB rushing plays. It appears defensive players in man or zone coverage do not even consider it a rushing threat until the QB has passed the LOS then a vision check is required. Rightfully so I guess since their suppose to be in coverage, but perhaps start the vision check after the QB is outside the OT's so once the QB is beyond LOS they immediately break coverage and attack. Maybe even have safeties, in cover 2 for example, start shifting over. I don't know, just a thought

On a side note, QB's rushing getting TFL should register as a sack!