I just thought of a variant of the delayed HB/QB draw that I think would work well for the 49ers, since they have a QB that can run.
In a standard HB draw, the QB goes back to pass, and then hands off to the HB, who gets to run against a defense that thinks it is defending against the pass. A QB draw is similar, except the QB holds on to the ball instead.
My version is similar, but works best with a FB and QB, although you could use HB like Frank Gore + QB as well. I will describe this as a pro-set, with a HB and FB behind the line of scrimmage.
Step 1 - HB lines up for a pass, leaving only the FB and QB behind the LOS. It appears that the FB will be staying in to block for the QB.
Step 2 - Ball is snapped
Step 3 - FB goes up the middle, like they are running a pass route as well, QB is in pass posture
Step 4 - FB chips a defense lineman if necessary to open a hole
Step 5 - QB becomes a runner, and runs towards the hole
Step 6 - FB blocks the QB spy or anyone that was watching him as a pass receiver
Step 7 - QB runs through hole, and should be looking at a big gain since defender is being blocked by the FB
Thoughts? I have never played on a true football team, so no idea if this would work or not. I don't think I have ever seen it run, though. This would work best on an obvious passing down, and the defense playing man coverage (which we are seeing a lot of lately). The biggest drawback, is your QB will probably get his since he is a runner. This play would probably not work as well against a blitz, since the FB may be stopped at the hole, giving the QB nowhere to run.