@ColoradoHusk - I've been more worried about him being quick enough to handle pass coverage. But I'm hoping the guy can really make it happen because it's awesome seeing a Nebraksa kid out there having success!
I get that, but I honestly think he's "playing slow" by getting stuck in between decisions. That OLB is rarely going to be asked to cover RB's or WR's down the field. That OLB is mainly just going to be taking up space in the zone, and covering TE's, as needed. One example of this is the play action pass where the QB will fake the handoff, and then bootleg back to the strong side (towards Nelson). Big Ten teams run this a lot, with the tight end being the simple pass in the flat. The QB will usually put the defender in a predicament because the DE/OLB usually is stuck between staying on the TE or going after the QB on the bootleg. There are 2 examples of this play which come to my mind this year.
First, against Northwestern, they ran this play in the 2nd quarter, and Nich Henrich was in at OLB (subbing for Nelson). Henrich read the play, stayed with the TE to take away that simple pass, and the ILB (I think it was Miller) attacked the QB to force an incomplete pass. IMO, Henrich was the key to that play because he stayed on the TE and took away that easy pass.
Second, against Iowa, late in the game when they were trying to milk the clock away, Iowa was faced with a 2nd and 10, after NU made a good stop on first down. Iowa ran this play right at Nelson, and Nelson got himself in no-mans land. IMO, he should have stayed with the TE, because the DE was coming from the inside to put pressure on Iowa's QB. Instead, after a pause, Nelson rushed the QB and there was a simple pass to the TE for a first down.
I realize this is a tough play for the OLB, but this is an example of 2 guys with similar builds and experience, where one guy (Henrich) made a quick decision and it led to an incomplete pass, and one guy (Nelson) hesitated and it led to a first down for the Iowa.