I just looked at as much footage of Upshaw as I could find...I will say this, his effort certainly doesn't remind you of Joakim Noah. lol
His motor is lackadaisical, his effort is up and down, his ability is much better than good when he works at it. He really counts on his height and length much of the time. He's always standing straight up at critical moments on D. If he gets sealed, he doesn't really get tough or even aggressive, he excepts what just happened, and deals with it as best as he can. He's not slow, but he seldom looks hungry or intense either.
If your the type of fan that enjoys an in your face Joakim Noah, KG, or Perk, type of effort from a big, he will disappoint. In fact if he played with KG and Perk I would be frightened for him. (I know they're men, he's not.)
I was a big proponent of drafting him, as I have always preached ... I just don't know. Not at 16 at least. He would really has to show well at the combine to make me feel comfortable.
("Danny please trade up from 16 if you can")