First reason is that I don't think we should move Ant/Sharpe unless we're getting a legitimate superstar player. Durant is really the only example of that.
Second, Mitchell is not really much of an upgrade from CJ. He doesn't change our trajectory at all. On the Jazz, he is basically CJ with a higher usage.
CJ on NOP - 24.3 ppg, 49% from the field, 39.4% from three, 5.8 assists, 4.5 rebounds, and 1.3 steals
Mitchell - 25.9 ppg, 44.8% from the field, 35.5% from three, 5.3 assists, 4.2 rebounds, and 1.5 steals
Ok that's just the basic data. Here is the advanced stuff:
CJ on NOP -
21.9 PER
.580 TS%
31.3 AST%
29.4 USG%
Mitchell
21.6 PER
.572 TS%
27.7 AST%
32.9 USG%
They're strikingly similar players when they have a similar USG rate. Neither one of them is a very good defender. CJ is a better shooter. They're both undersized, but Mitchell is VERY undersized.
Hard pass from me.