The second step is the training speed. In BB there are some ways of using the training and training speed. During my analisys I came to the following things:
There are three skills which I almost never train. JS, HA and ID.
Some of you may be surprised why. It's because of the training order.
JS:
In Utopia I trained Ettig, my current SF. He has JS 15, JR 15, HA 16, DR 17 and IS 17. I trained only three skills to achieve these five.
If you start with 1on1 Forwards, you train DR, HA, JS and IS. As soon as you reach your DR level, switch to JR.
JR will train JS as a secondary skill. I managed to achieve JS 15 and JR 15 at the same time.
The last skill was IS. With the first training as a 22 old, the reached IS 15 and was finished.
With this I had 8 ups in JS and 8 in HA without training these two skills even once.
HA:
HA benefits from 1on1 and PA. If you train these two things before HA, you don't have to invest some time in HA training.
ID:
The most interresting skill ;) During the training of Haek, I understood that ID works like JS.
I started with OD and got every 6-8 weeks an up in ID. And if you train from 5 up to 18 there are some ups in ID, trust me. After that I switched to SB and trained it up till 19. SB works analog to OD. In the beginning, you receive every 4-5 weeks an up in ID. Later every 6-8.
For those who train RB, this will train ID too.
So in the end, until you finish all the defense skills, ID will reach its level by secondary training.
With the right order, I managed to train Haek to the status of the "best defender in BB" with just a level 4 coach. I calculated, that if I used a level 7 coach, he would have 9 more ups... these 9 would be perfect at RB ;)
For Ettig I used a level 3 and later level 4 coach.
What kind of skillsets could be NT relevant?
JS 18 - JR 18 - OD 18 - HA 15 - DR 15 - PA 10 -> Pot 10 player, a MVP has to go with -1JS and -1JR. Current salary around 115k.
JS 17 - JR 17 - OD 10 - HA 15 - DR 17 - PA 8 - IS 17 - ID 17 - RB 4 - SB 17 -> my current project, I have no clue if I will reach this skillset, but that's a all-tactics-PF with a destructive force. You would need a player like Haek to stop him m2m and a 3-2 zone would have its problems because he has a SG-like outside scoring
JS 10 - JR 10 - OD 10 - HA 10 - DR 10 - PA 15 - IS 10 - ID 18 - RB 18 - SB 18 -> a defense C with a high passing. ideal supporter for outside tactics and a force against inside tactics. With 140k also very cheap
JS 13 - JR 10 - OD 10 - HA 15 - DR 17 - PA 10 - IS 19 - ID 18 - RB 17 - SB 5 -> around 13 seasons ago I mentored a manager and he build a player like this one. The player is a very strong and can score against non-SB guys. Unfortunately with such low SB you can't expect that your defense will be like a fortress. Around 200k...
JS 16 - JR 16 - OD 16 - HA 16 - DR 16 - PA 16 - IS 16 - ID 16 - RB 16 - SB 16 -> "THE PERFECT SF". This guy would be loved by the engine because he is the most balanced player you can achieve in this game. And the game was design for balanced players. But I don't know if this is even doable. You would need an 18y/o with around 196-201cm and the right distribution of skills, not 10x7 but lower DR and maybe IS to prevent that these to skills grow to fast. Over 220k.
Bottom line:
I could go for hours and sho skillsets, but the important point is, that you have to decide at the beginning, "what do I want?". And starting from there, you go for the offense, defense or balanced guy and only invest your time and ressources in the necessary skills. Why do you need JS 17 for a defensive C? Or PA 16 for a scoring PF? There is always a point where there is no reason to go on further. So switch to the A skills and train him to 17+, cause that's were the real NT level starts.