He was a sophomore. He's developing. Losing a developing young player who is a fantastic athlete and defender in addition to the huge scoring jump he made is NOT a good thing.
23 points, 5 rebounds against #1 seed North Carolina
13 points, 4 rebounds against Iowa
16 points, 4 rebounds against USC
13 points, 3 rebounds against Providence
14 points, 2 rebounds against Arkansas
12 points, 6 rebounds against Kansas
12 points, 10 rebounds against WVU
14 points, 4 rebounds against Cincy
14 points, 6 rebounds against Texas Tech
16 points, 3 rebounds against Oklahoma State
16 points, 4 rebounds against TCU
10 points, 2 rebounds against Texas
No way around it... He's a good player and its a loss for the team if he goes in the portal and doesn't come back. With some marginal improvements into his junior year (which is pretty common) you are talking about a very well rounded player.