Our old version of HB READ (called 13 A or B Choice in Coach Mackovic's offense), featured a running back running an option route on an isolated LB. He could sit versus zone, break out vesus man, and cut across his face if the LB overplayed to the outside:
Used as a "Mike Read" backside tag (one of the three classifications of backside tags in this passing game), Lassiter High routinely mates "Sloppy" (H Sloppy if the slot is running it; F Sloppy if it is the singleback) with a frontside "Stick" pattern -- one of the "Big Three" pass concepts in this passing attack. "Mike Read" tags serve the purpose of gaining a numerical advantage versus 2-high defensive coverages: in the diagram below, if the MLB overcommits to the strong side, the WLB becomes vulnerable to various 2 on 1 combinations by the 2 offensive receivers on the left.