DE's playing QB on option

are they doubling the three techn. ? if they are then the ILB should scrape into the C gap area and take first threat. the DE should take two steps with the arc of the TE then get eyes inside and take first threat. the S/S should rip thru the TE's block and have time to get to pitch. the F/S should be filling down hill ( dive, dump, qb, pitch ). the backside ILB is taking the playside A gap for cutback. the dc from Arizona State gave me that info at a clinic in Houston this year. that is basically how we play it from a 43 defense.
we never assign people unless we are blitzing and forcing a quick pitch. the rest of the time we just play techn. take first threat that shows. the blocking scheme will take us to the right person anyway.
DT's and Mac: Dive
DE and Stinger: Dive or QB depending on the block of the TE
DE and Wolf: Dive or QB depending on the block of the OT
the DE will squeeze veer blocks and end up at the mesh point take first threat ( should be dive or both at hand off ). if the OT or TE veer blocks then the LB sees a closed door so he scrapes outside and takes the next threat ( who should be the QB ). if TE ARC blocks the the DE play normal and end up on the QB. the LB will see an open door with an ARC block so he will fill it and end up on Dive. if OL bases then we tell the defense to defend their gap. so the DE is on QB, LB is on Dive.
even if we play our 4-2-5 look we play it the same way.