Semi isn't going anywhere but his offense is atrocious and his defense is severely overrated. His defensive rating is the worst on the team. His DBPM is 10th on the team just ahead of reknown defensive rotation players Larkin, Morris, Irving and Nader. He's had +/- monthly stats of -1.8, -3.6, -12.7, 7.4 and -5.6. The offense is 9.1 points worse per 100 possessions when he is on the floor and the defense is 2 points worse when he is playing.He is basically non-existant in rebounds, steals, blocks per game and has awful rebound percentages.
I wouldn't want Mohammed but I cringe when I see Brown and Tatum on the floor in first halves with just 11 or 12 minutes played while Semi gets 12-13 minutes. And that happens a lot.