Rein made the switch to quarterback, playing his first full game there two weeks ago against Greenbrier East in a 48-29 Logan victory.
The move was beneficial for Mullins and the Wildcats. Rein scored five touchdowns (four rushing and two passing), rushing for 114 yards and throwing for 111.
Rein played some at quarterback as well last week in a 26-20 loss to Mingo Central before moving back to receiver mid game and hauling in a 66-yard touchdown connection from Ryan Miller.
"We had a hard time getting the ball to him but at the quarterback position, he touches it on every play," Mullins said. "It was a great opportunity to get the ball in his hands.
"Josh is a very versatile player, and gives the defenses a lot to prepare for. He can do so many things with the ball in his hands.
"He's a great wide receiver, we have played him some at running back, and some at quarterback over the last couple games. He runs kicks back as well. He helps the offense out a lot."
Rein doesn't mind moving around, as long as the result is a victory.
"Whatever I got to do to help the team win is the way I look at it," said Rein, when asked his preference of position played for Logan. "I just try to work hard and do my best."
Rein also takes pride in his off-the-field endeavors.
"It's a huge accomplishment," said Rein, who is planning on majoring in engineering. "Not many people can say they played three sports and get really good grades, too. I'm definitely proud of it.
"I'd like to play college football but even if I don't, I have an opportunity to get a good education. That's my main goal. Sports is a bonus. It's a lot of weight off my shoulders."
Mullins has no doubt that Rein can play college football at the wide receiver position if he chooses to.
"He would help any team," Mullins said. "He runs great routes and makes unbelievable catches. If he was in the Kanawha Valley, everyone would know of him but since he is out here (Logan), not a lot of people have seen him."