Wide diamond plays back to front. You need a solid base, 2 centre backs, an anchorman(def mid), and full-backs without arrows to account for his wide midfielders. So you've sorted the defence, now how do you break him down? 2 central midfielders and 3 strikers. Play attacking(hard attacking if you're chasing the game), focus mixed(NOT middle), press whole pitch, man-marking, offside trap. Play short passing as you're looking for your central midfielders to boss midfield. If you go hard attacking during the game, switch to hard tackling as well.