isnt the normal pattern something like:
age 18 a whole year of primaries - 1/2 a season of id first to get it real high hopefully near sensational, second half of the season doing is, every week where there is only 2 games or in case of a stuff up or in playoffs when you need to be careful with your lineups, then do rebounding - salary wont be crippling, around 10k
age 19 a whole year of secondaries - playing pg is a pain but he can swap in defence, passing is the first one to work on, then you want a bit of od and finally some 1on1 or js - can get some other guys some extra training at this time - this keeps salary still quite modest, maybe around 12k
age 20 another year of primaries - just work on whatever is behind and slam them, hopefully by the end of the season he can be heading for triple tremendous - now his wage will start to explode look for 20k ++
age 21 he is on the u21 team, your merchandising goes through the roof, your arena is full every week, you have more money than you know what to do with, you have a player other coaches would kill for, he smashes his mono-skilled opponents every match, and the u21 coach will give you week by week advice on what the team needs
sound good?