if you use the diamond 4-1-2-1-2 put blue arrow in the 2 Dc's and the DMC. And if you want to do like me and try to put red arrows in all the other players maybe can be interesting :P
I say lots of times that usually teams with only 3 defenders are easy to beat... but.... that's my experience....-.-'
If your AMC do nothing during 50 minutes, change it for another player. Well... the idea is that when you don't see the name of a player during all match, change this for another... good luck^^