Ideal training methods

I am not sure if there is a topic on this previously but I can't seem to find it.

What is the ideal training split for players to maximise their rating? So what should I train my defender to have i.e. is tackling more important than speed, and how much more important?

Key areas for position


Keeper:
Handling 19,23%
Aerial 19,23%
Diving 19,23%
One on one 19,23%
Speed 7,69%
Acceleration 7,69%
Passing 1,92%
Stamina 1,92%
Perseverance 1,92%
Leadership 1,92%

Defender:
Tackling 40,54%
Speed 16,89%
Acceleration 16,89%
Passing 6,76%
Dribbling 3,38%
Stamina 3,38%
Perseverance 3,38%
Leadership 3,38%
Set pieces 3,38%
Finishing 2,03%

Midfielder:
Passing 22,58%
Dribbling 19,35%
Stamina 16,13%
Finishing 12,90%
Speed 9,68%
Perseverance 6,45%
Tackling 3,23%
Acceleration 3,23%
Set pieces 3,23%
Leadership 3,23%

Forward:
Finishing 30,03%
Dribbling 24,02%
Speed 15,02%
Acceleration 15,02%
Passing 3%
Perseverance 3%
Leadership 3%
Set pieces 3%
Stamina 2,4%
Tackling 1,5%