Try to follow ma guides. Try a test, vs a 1% team, at least 9 levels lower, so to reach the max. simulator margin which is 9* distance. You will have all your players in the 9* if you do this, so your 4-5* will be equalized with your 9* and you will be able to expose the internal programming of your players.
Do this with the main 11 and too the subs/reserves just to see if the good roles are assigned t players in the bench.