Here are a few things I think could be improved in the game:
As before, being able to train only the players who weren't playing was much better. Now that we can train even the starters, substitutes are of little use. Just one or two players per position are enough to fill the roster.
Capping the number of transfers per season would be necessary. This would prevent players from trading players to finish their seasons with the same players rated over 100. This would allow more room for tactics and player development through training.
Revising playing styles, as they aren't very well suited to modern football. For example: shooting from long range. This isn't really a tactic. Furthermore, tactics should be based on the opponent, not the team's formation. You don't have to use a five-man defense for a counter-attack.
