Yeah, probably. Guy came in in week 12 and picked up the playbook faster than anyone thought possible. It's certainly as likely as Kaepernick being able to run the ball 15+ times per game. Harris showed vision, ability to participate as a receiver in the running game. He needs to figure out pass pro but he has a few extra weeks now!
CK won't be running 15 times during the regular season. Harbaugh doesn't expose him like that now that he's starting. It will be more traditional in the regular season, this shit in the postseason if we make it.