I actually like this trainee a lot. With a 7 footer it's unusual to have the starting guard skills he has, especially that OD. I think he could make a very good PF in the future. And with 5 seasons of training he'll be very good for your team for a long, long time. You won't have to worry about him capping either, so really it's a question of how much training you want to give him.
Sure, his inside skills aren't great, but there aren't any atrocious skills. Like strilfe said, single position inside D for most of this season would be good, at least to start. Rebounding on weeks where you have only 2 games is good, though I would consider doing some 1v1 fowards as well. That will train JS, handling, driving and inside shot all at the same time. Not sure why rebounding is "more complicated" according to strilfe. If anything it's easier, cause you don't have to play your trainee for all 48 minutes to make sure they all get trained. Personally I would also train passing, because assisted shots are so important. Not sure how high you want to take it, but definitely get it higher than 1.
It may also depend somewhat on what other trainees you have. Are you training guards or bigs now?