the dreaded 53 stack

Counter Options, Dives, Counter Dives to the TB. These have been good for us. What also may work in part with the Option is a quick Option reverse w/ the WR to keep the Backside from playing aggressive on the backside of the option. Anything Vertical or Perimeter plays work well.
-good luck

Inside veer to the weak side is a great play against a 5-3. Ace combo the C and PSG with the nose and MLB. PST blocks down on the DT. The Dive read is the DE. You can read the OLB for pitch and have the X crack the FS. Or you can crack the OLB and read the FS or CB for pitch. Then once the FS and CB start to support hard, throw play action off the inside veer action to the X on a quick post corner, the crack blocking schemes should set up the route.

Pay attention for the "echo" stunt. DE penetrates upfield for QB while the OLB crashes the dive. This is a keep read and you now pitch off the DE.