A way to get ahead of the curve in training? There isn't really no right or wrong answer to that, but I can answer that the best that I can.
You have to be able to get managers on board. More players you have more depth you will have overall. 2 95 TSP players will beat 1 95 and 2 85s any day of the week (Of course, this is if their builds are of similar mold and the right conditions are met/tactics, etc) The team is only as strong as it's weakest player so to speak. You have to get what i call "training success" rates up and lower the player mortality rate as well. If the class lacks those 55+ TSP monsters, do best with the 50s and 48s, as they can also be successful U21 team members. Look into the allstars as well, as some with the right training can be considered for a spot. That's the only real answer I can give besides "Hey, let's make a all JR team!" or "Let's focus on a LOT of SB" (I'm not saying no to those builds or even ignoring them/putting them down, but you do need to mix in the old generation and new generation mix of players in order to make it work. I would like to have a couple JR dudes and SB guys on the team in the near future)
2nd question, I will say that I don't have historical data or any info to back it up, being honest--i really don't. I will admit numbers is a thing I must work on to improve greatly if I were to become the coach (game plan numbers being #1 thing I will work on) But I will say that PA on a big man is very helpful in any offense. I can tell you that based on my numerous experiences of training big men...most recently Jerry Vinson. If you want some more analysis you can BB Mail me and I will gladly take the time to point out a few of his games/numbers if you want to. I just don't have the clear cut numbers at the moment.
3 Time NBBA Champion. Certified Trainer. Mentor. Have any questions? Feel free to shoot me a BB-Mail!