Well, I kinda made this thread more for build advice but I'll clarify a few things...
The players will reach level 12 nearly at the end of their fourth season; they were created during off-season and it takes 4 seasons and 4 days worth of training experience to level to 13. (Meaning during their 5th season they'll start at 15 after off-season boosts and level within one game)
Of course they will not reach a really high level, but unlike many other games, in GLB higher level doesn't equate to more success because you typically face equal level opponents (I wouldn't face level 25s... That would be an insane waste of effort).
Considering I'm very patient and can do other things (like manage the team that's funding them) in the meantime, it's not that big of a deal to watch them slowly grow into monsters.
Anyway... If anyone has some, I'd like some build advice. I have all the builds open so you can click em on my owner page if that's easier. Thanks in advance.