I have a guy in a very similar spot.
Jump Shot: prominent Jump Range: mediocre
Outside Def.: strong Handling: strong
Driving: awful Passing: strong
Inside Shot: mediocre Inside Def.: strong
Rebounding: strong Shot Blocking: mediocre
Stamina: respectable Free Throw: strong
His salary is similar to your guys and he's popped 2-3 times this year but both of those were earlier. I've trained him 4-5 times (admittedly in a few different things) and he is getting older for a trainee, but nonetheless he hasn't popped in a very long time. Would be a shame if he's done already because I just wanted a couple more in OD and driving before I was comfortable leaving him alone.