Offsetting the single back in a one back set

Coach,

We love to put our single back on the outside hip of the weak OT in 3rd and passing situations. First of all, it allows us to check him out easier than if he is behind the QB. In 1st and 2nd down situations, he needs to be behind the QB for obvious running purposes but in 3rd and long, put him out there on the outside hip of the weak OT. Have him check out off #3 weak. If #3 blitzes, he must pick him up. You want your backs being good runners first, then good pass blockers second and finally be able to catch passes at times when they get out.