Yes I am seeing this a lot too. It might be a 'beta' feature that will get toned down in the final realise, but it might also point to some new things. Are you using a fluid/high temp attacking tactic? If so, are your players fit? You might need to train them in fitness rather than any other tactic for a while and see if things improve. I like the pie chart screen with all the detailed data. Quite helpful! My first team are 40% attacking and the rest tactical, with a few specialities thrown in for good measure.
If a player is becoming jaded, they are still match fit but are more likely to suffer an injury. When your assi manager or whoever deals with this tells you they need a rest, then I would follow their advice. Send them on holiday for a week or something (the player that is, not the assistant manager)