Theres really no reason to train game shape. If your game shape is down, maybe rest that player. Try to focus on training your younger players. It also helps to focus on one or a couple of players at a time. Make sure you get them the full 48 minutes as well. The drop off is exponential, not linear so not getting 48 minutes for the week has a large effect. Try looking through the forums for tips. I havent been playing this game long, thats where i got all my info