5-2 LBS covering backs

Coach,

We run a 5-2/3-4 and play man free. The motion man would be picked up by the free safety because we would most likely try to hide the man coverage with cover 3 shell. We use the spy call, a post snap call, to counter teams that will swing a back out into the vacated flat if we have been playing a lot of cover 3 or run swing routes to make the match up difficult for our LB's if we have been playing a lot of man. We usually double the spy call with a blitz to make sure we get the pressure we need. In the scenario you mentioned, which would be a team motioning to trips, we would check out of the man coverage to a 1/4, 1/4, 1/2 or a combo coverage. If the team we are playing was a true option team and they were just doing what you mentioned to manipulate the defense into a favorable set for them, I promise I am not too stubborn with our scheme to let what you said happen.