If he is willing to tell every team that he won’t sign a second contract he might as well just refuse to sign his rookie deal and sit the year out. No reason to even play 5 years. If he did that he would be allowed to enter the supplemental draft the following year and be redrafted. If I’m remembering correctly Bo Jackson is the only player that has done this. Was drafted by Tampa in round 1 and sat out the year (played in the MLB) then Was drafted by the Raiders in the 7th round of the following year. (Supplemental). He had stated prior to the draft that he would sit out if Tampa drafted him. I believe a couple of other players over the years have made similar threats but can’t recall for sure.
How good is Nuss? I rarely watch college football and am in the small minority of people from Louisiana who wouldnt care if LSU fell off the face of the Earth. So I haven’t seen a single snap of him.