If you want to create valuable players then none of these skills you must train first
Pressure until 2 pops, then driving until 3 pops
Start training first inside skills until they would have 7-10 (except block shot,it isnt necessary for the quards too much)
Then after 2-3 seasons,pay attention in their core skills.And always cyclic training (ex.in.shot,in.def,rebs then again)