For me the problem is with GKs. Marek Maly showed 6-5-6-6-6 and even the GKs in my TM have showed no more than 6.
My top scorer is Jan Dressler (ST), 11/21. I generally play with red arrows on wingbacks, and they average about a goal every 4 matches. Everyone in my squad has a goal bar the GK, and I don't bother who's scoring if the goals come.