6) For me, ball possession tactic works best against a better opponents. Especially if they are weak at center field. Try to find hole in their line-up and focus the passing there, short passing. Max possession bonus. Its not always an option, but it works well if the opponent have less than 3 DMCs/MCs.

7) Definitely Free-kick. Then Defensive Wall. Corner specialist and aerial defender is also important, but the Play-maker can also be good at taking Corners but I am not sold on that he is as good as the Corner Specialist...