Have this been implemented? I oppose implementing major change during a season.

Many points sound like those many managers used to believe e.g. player with low physical attribute are injury prone, players are more likely injured after training. I am not sure whether the brief is real. Now I know it will implement as new feature.

Manager relied on training to improve their teams will suffer in the new change. In contrast, those who relied on continuous replacing existing players with high quality one will be favored.

I expect I will suffer in the new change. Luckily I am not a green pack farmer who like power training the players.