Hello,
My idea for the game revolves around two separate ideas.
The first idea is the idea of a different max potential for each of the components (box/mt/wr/bjj) as hidden attributes at birth that are revealed through training from the coaches. I know this game isn't meant to mimic real life however I think this would bring a new training/tactical level to the game. There are countless examples of fighters who are natural in one aspect of the fight game or another, and despite how much training other athletes do, while they obviously get better they hit a plateau. This is seen all the time as standup fighters attempt to learn to defend themselves on the ground, or bjj guys attempt to develop a striking game, they develop into well rounded fighters, yet regardless of how many hours they dedicate to a specific areas they never catch the 'naturals'
The second idea is different learning speeds in different areas. The second idea is building off the learning speed already in the game. This idea rings true to me when I think of GSP. The speed in which he was able to bring his wrestling up was amazing, beating fighters with wrestling specific pedigress (Matt Hughes, Josh Koschek, Sean Sherk, Jon Fitch), where as some other aspects of his game didn't improve at the same amazing speed.
I feel like if either of or both of these ideas were implemented that it would bring more decisions into the game. Not every top fighter will be 14/15 across the board and would bring a lot of variety to the game.