Z
I came to the conclusion at the youth level to never lead the FB into the zone...he just gets in the way. So...we either do not incorporate a FB or he will pin the backside.
That has cleared things up for us in a big way.
against seven man front fronts, you can put him backside, not vs 8 man fronts.
Inserting the fb is no different than adding a 2nd runner. he is there to essentially deal with #4 or whoever you decide to have help with, mike who is dislocated, strong ss, sam....corner....all pending several factors.....a note on the corner...corners in the zone world cant tackle.