I don't think Simmons or Ingram is some kind of franchise savior. Simmons is a great fit as a 4 in the modern NBA though because he can guard inside and on the perimeter, rebound, handle the ball like a guard, and score inside. Even if he never develops a reliable jumper, he is still going to be a very valuable player. I see him as a better version of Draymond Green who can create offense on his own much better than Green.
Timed speed isn't great (4.73 reported on Oklahoma official site)
Summary: Gresham is a first-round caliber tight end prospect and will make one team very explosive in the passing game at his position. He has the size and strength to be a better blocker, but this can be coached up in the NFL and often is. I'd like to see him fine tune his routes in his senior season.
Player Comparison: Tony Gonzalez. I hate to compare Gresham to one of the best tight ends of all time, but I am limited because tight ends of Gresham's caliber are very rare with his size, athleticism and production.