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.
Effective in pick-and-roll/pick-and-pop situations
Taking defenders off the bounce
Needs to become more efficient as a back-to-the-basket scorer
Free throw shooting
Creating his own shot
Comfort level handling ball on perimeter when not immediately shooting the ball
Summary: Markieff Morris has always been a physical presence inside, but his developing perimeter jump shot has really helped his stock this season. His natural fit is at power forward but he could also play the center position at the next level if needed. He is in the 2011 NBA Draft for good and should be taken in the middle of the first round.
Player Comparison: Antonio McDyess. Think McDyess post-injury; an effective big man who can knock down jump shots but also be a factor inside with his physicality. Morris will fit a similar role as he will never be a star in the league but should become a steady contributor due to his size and skill level.