None of those positions are likely the one Blake Lueders plays now as a high school junior.
The 6-foot-5, 245-pound Lueders lines up at middle linebacker for Zionsville.
"That's where the team needs me to play," Lueders said.
"If a team wants me to play linebacker, I'd be okay with that. I love linebacker. I have nothing against linebacker."
Harbaugh and his staff have told Lueders defensive end is the likely spot, but that fullback and tight end are possibilities as well.
Many other schools agree.
Lueders is also hearing quite a bit from Northwestern, Wake Forest, North Carolina, Indiana, Purdue, Boston College and Vanderbilt.
"They said they like my explosiveness," Lueders said of Northwestern and several other college recruiters. "Freshman and sophomore years, I played fullback and from those tapes, the coaches said they love all the pancakes I had, and how I love to play physical. And they like my frame and size."
Notre Dame is also showing some early interest in Lueders. Assistant coach Bernie Parmalee has mailed a few letters. Lueders is hoping to hear more from Parmalee and the Irish down the road.
"They're real close to home," Lueders began. "I've grown up watching and rooting for them. I love the tradition and stuff."
Over the years, Lueders and his family have attended a few Notre Dame games in South Bend.
"It's a real nice campus. I went to the summer football camp there freshman year. It's just a good campus. They have a nice cathedral."
Lueders was going to camp at Notre Dame this past summer, but he was wiped out from several other camps he attended before it.
With touring campuses and attending camps, Lueders summer travels took him to Stanford, Northwestern, Indiana, Vanderbilt and Boston College. He recently attended the Wildcats-Michigan State game, and will be at the Wake Forest-Duke game in Winston Salem next weekend.
"Probably before my senior season I would think," Lueders said of when he'd like to make a college decision. "I'd like to know before I start my senior season, possibly a little earlier. I think definitely before my senior season."
Lueders hasn't maxed out in the weight room in awhile. At the end of last year, he bench-pressed an impressive 310 pounds, and squatted 430. With a weighted grades system, Lueders has a 4.1 GPA.
"I want to go to a good academic school, with a pretty notable football program," Lueders said. "Really a place I fit in and feel good about.
"I like math and I'm pretty good at math, so I'm thinking about majoring in accounting, but I'm also thinking about business. I'm open to anything and I really need to look into that more because I really don't know."
Lueders feels he's best suited for defensive end on the next level, but right now, he isn't sure what position he will end up playing.