I like Heller, I'm not sure if he has a position in the Big 10. He doesn't seem like his frame is big enough to get to 235 lbs and he just isn't fast enough to play S. He sort of reminds me of Drake Michaelson, a LBer from EP who was in a similar situation. I think Michaelson was faster. He was offered a PWO but he chose to accept an offer to Wofford.
Anderson. . .he looked good and he's a good HS RB. I'm not sure if he is the kind of guy that is an elite athlete who could become a DE in our system. He's an interesting guy though. I'd definitely be interested in offering him a PWO and trying to see where he fits.
Olson. . .he's a good HS lineman and he will definitely play FCS football. I don't think he's a Big 10 caliber guy. There are a handful of OL in the state that I think have Big 10 potential (Trabing (Prior Lake), Herbis (Minnetonka), Marinello (Eastview).
Another guy I really hope considers a Gopher walkon (if it's offered) is an OL out of Cretin named Joe Wagner. He is a TE that was forced to OL because of injuries. But he could probably bulk up to 6'5" 255 lbs and play that Drew Goodger TE position. He can block his a$$ off.