In describing what the Scarlet Knights were getting in Scout.com's No. 46-rated offensive tackle, Boyertown coach Mark Scisly kept coming back to one word:
Athletic. Or, some form of the word.
"He comes from a good family, and he's a good football player, too," Scisly said. "He does a lot of things well. He runs very well. We run a wing-T offense and he's a pulling guard. He's very athletic."
And Muller is also big.
He measures in at 6-foot-6, 300 pounds. But that is not the most eye-popping statistic.
"He runs a 4.9 (second) 40 (yard dash)," Scisly said. "He's a very athletic lineman. His biggest strength was he played every position on the line. He will probably be a left tackle, but he could play anywhere for somebody."
Although Boyertown plays in a predominantly running offense, dropping into pass protection should not be an issue.
"He'll be able to pass block," Scisly said. "He's very athletic. We did throw the ball some, and he definitely has the athleticism they want in a pass blocker. He can kick slide and do all that kind of stuff."
And although his future is on offense, Muller also excelled playing on the defensive line at Boyertown as well.
"He's very quick and very big," Scisly said. "We usually use him as a two-gap player because he's so big, and so quick. He was first-team all-league offense and defense. He's a very good player."
Muller committed to Rutgers after visiting the campus Wednesday and Thursday. He met extensively with the coaching staff, hung around with his future teammates and got one last feel for a program which was the first to offer him, and remained near or atop his list throughout his recruitment.
"I know he always liked coach (Greg) Schiano and it was one of his top choices," he said.
As for areas of improvement, Scisly cited the need for growth in Muller's overall game.
"He's got to keep continuing to get better," Scisly said. "He's become a better football player each of the last two years. He's got to get better. You go from high school to college, it's a big step. He's got to do everything better. He's got to be stronger, he's got to be more aggressive. "He has to take his game up a notch, just like anyone who goes from high school to Division I football."