Trapping the Center

I know people that will use the Center to kickout on the Counter. Not true trap.

Coach Campbell,
What we have done lately is make calls for the who will be pulling. Texas or Tenn. will telll the tackle to pull, and Georgia will tell the guard to pull. We also make calls to let them know who they will be trapping. Red is the DT, and White is the De against a 4 man front, against a 5 man front red = nose, white= dt, blue = de. It has worked for us in the past. It really makes the rb pay attention to what is going on.
What do you think?