Perfetti+ would be insane for Nelson as a rental.
They won't do that nor will it be the ask.
It will be a first plus something. Teams competing never trade key parts of their teams at the deadline unless said piece is an expiring asset (Rantanen) and even then it isn't common.
People are putting way too much stock in a random nobody on Twitter.
Not one credible site or reporter has Cole in our list of assets available. It's all draft picks and prospects which is what contenders are usually willing to pony up.