I recently bought many players with 4-5 stars, when I play a match I always have about 5-15% possession by visiting and cheering, but I win with just 1 goal more than the opponent even if he doesn't play and has less stronger team then me.
These are the pictures of the match, all players have high moral and are well rested.
Here are my players 5 minutes after the match.
Here is another example.
My players are always well rested and have high moral.
I tried many different tactics, the tactics from these to matches were half of the time NORMAL and half of the time HARD ATTACKING.
Hope to hear from anyone soon.
Thank you