yarrrrrr i know, i wasnt really disagreeing with you at all was i!? LOL. next time ill really disagree. promise :)
So yes, the training that he does needs to fit into his team and team structure, and yer, if his other trainee's are forwards then training inside skills might be the best option if he wants to keep them...... Otherwise the other option for BBB could be to sell his other trainee's, make this guy the pure 100% training focus for him and all other players that get training is just bonus. this would give him more flexibility with this particular trainee. whether he wants this or not is up to him.
The salary difference is neglible you are right, im probably thinking of my own circumstances here. Early on yes, it doesnt matter that much.
In terms of playing him in different defensive positions to hide his weakness, this is absolutely true, and is a very useful tactic that ive come to really appreciate over the last few seasons..... . However it does make managing minutes, others players playing positions and minutes and the general team strucutre/playing abilities need to accomodate this. ie: its a lot more difficult, when compared to just straight 'Play him at C, or PG'...
There is no right/wrong way here really, because the player is so young and has good secondaries, my perspective is just to keep training as simple as possible and as flexible as possible, especially if you are just starting out.