One way to challenge the RPO is by changing fronts from snap-to-snap and by disguising fronts after lining up. Mahomes will be reading the number of defenders in the box to see if the offense is outnumbered in the run game. If he sees seven defenders and only has six blockers for his back, he may be enticed to throw.
But what if counting the number of box defenders isn't all that easy? What if he's having trouble telling the difference between a 4-3 or a five-man "bear" front, for instance?
Changing fronts can make Mahomes' post-snap decision a little dicier as well. If Kyle Van Noy is standing up on the edge alongside Lawrence Guy, who should Mahomes be reading? Is it the linebacker? Is it the end? Who is the end? Is Van Noy rushing or is he part of the coverage equation? Those answers will impact what Mahomes does with the football and could potentially create some indecision.
But the indecision can go both ways. As a linebacker, keeping track of where the football has gone can lead to some less-than-ideal split-second calls. Do you attack the line to help stop the run? Or do you drop into coverage to take away the pass?
"A lot of times it's putting that one guy who has responsibilities in the run and pass game [in a bind]," Dont'a Hightower said. "That's kind of what causes the confusion in the open spot, the blind spot, in a lot of those RPO looks . . .
"If you don't bite on [the handoff], then they're going to run the ball. That's the RPO. That's the doozy. That's the hard part about it."