The pitch size is at largest possible and it's working wonders for me because I put it at all out attack at the beginning of the game and then usually switch to possession once I'm up some goals. As for AML, he contributes the most assists. He is also higher rated than my AMR so that is a factor.
Regarding pitch size, I don't know. I'm not allowed to alter my pitch size at current stadium. Larger would theoretically carry more goal threat.
By this do you mean I would more score or concede more?
Can I use a BWM instead of CM(D) and a DLP(S) instead? And one CD(X) and the other CD(C)? I'm asking because those are the players I currently have. And what size field do you recommend? I typically use the largest available since I get the best fitness coaches