Burgeoning Wolverine Star has a picture-page breakdown of this inverted veer against UMass (LINK to full article):
His conclusions?
The way Michigan ran this play last year wasn't really an option at all. If you're blocking the player that you're supposed to be optioning, your QB is just taking longer to hand the ball off/run. This schematic tweak against UMass hopefully signals a change in philosophy where the offense will block defenders by optioning them.