Smith, Griffin, and Jones went on to all be good college players and they would have been on that 2021 #1 seed team.
Three very different stories.
Mark Smith was an overrated lower tier untested top 100 Mr. Basketball. He and his parents envisioned a ball dominant lead guard. Coach Underwood was eager to indulge their fantasy. It worked fairly well against lesser competition. As the level of competition increased, Smith was eventually exposed. He was then used as more of a spot up shooting guard, but didn't shoot well.
The punitive use of exercise allegedly factored in, and he transferred someplace where he would be used right, as a ball dominant lead guard. He soon settled into a role as an off the ball, spot up shooter, accepted it, and became marginally good at it.
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Jones violated team rules twice, served lengthy suspensions, dropped out of the rotation, fell behind, never caught up, and entered the portal. He was a nice player. Wish he had stayed and worked out.
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Iirc, Griffin was a player with good length, but not really a good athlete. He could rebound, pass a little, and really shoot. Not much of a handle. Bad on defense. I think we used him as a stretch 4. I also recall some head issues. Like literally stepping on a fallen opponent.
He transferred to Syracuse, where they could hide him on defense in their zone. He was very inconsistent. Averaged 13 by basically scoring 22 one game and 4 the next. He got in Boeheim's doghouse late and his tick dwindled.
Recruiting wise, given the time and circumstances, I think Underwood would take all 3 again. A bird in the hand ... He had to take who he could get.
My only objection is he acted like Smith was going to be an NBA level point guard. He had to be Kidding.