Simply stated, the 6-foot-4, 270-pound Mulrooney will have to prove himself during a lineman camp at Rutgers this summer, a challenge he is embracing.
"It's really a matter of me coming to the camp and showing them,'' Mulrooney said. "You never really know if you're going to get an offer, but pretty much that is what it's going to come down to.
"They've seen my tape. So they want to see, ‘Do I have the footwork? Do I have the technique? Am I a big, fat slob that can't move his body?' Just everything they have to see in person.''
Mulrooney, whose lone offer is from Maryland, also left Rutgers well-informed about technique and the Scarlet Knights' blocking schemes.
He spent most of practice watching offensive line coach Kyle Flood drill his unit.
"I was like a sponge trying to absorb everything in,'' Mulrooney said, "from the footwork to the aggressiveness, to how they pull, how they move, how they run, how they block. I was trying to keep notes in my head of how they do things.
"I was trying to soak it in because I'll probably be playing guard or center. I was watching the drills, the one-on-ones, and was just trying to get a feel for it, the speed, and the movement you're going to make.''
Mulrooney also spoke to coach Flood before practice, and met his recruiting coordinator, tight ends coach Phil Galiano, for the first time.
"I got to see coach Flood coach, and he's a real in your face type of guy, which is great,'' Mulrooney said. "He's real hands-on. He's in the trenches with the guys, breaking it down step-by-step for them, making it look easy.
"He's a real great coach, and I got to meet coach Galiano for the first time. He's the guy that is recruiting me after coach (Joe) Susan left. He's a real good guy, and I'm really happy to finally meet him.''