You said, 'I don't see him as a first round pick', 'He's just average. In my opinion'. You didn't say his skill-set isn't one of a 1st rounder, but now that you did, I'm going to disagree with you. He can do everything except shoot consistently well, and we all know that is one area where a player can always make progress in.
My point with Mathews and Fields was that they were not projected to be drafted, nor did they meet all the necessary, requisite skill-sets to make it in the NBA. Yet, one was drafted, and another went undrafted to eventually become a key piece in several playoff teams. Why can't Jimmy be another one of these players? You haven't yet told me.