That's my dilemma.... surprise my opponent with a different formation i never played before, or just stick to my 'own' 3-5-2 formation.
Of course my players have full moral/condition and they get the max. win bonus if they succeed. Hell, i even throw out a huge party for them incluse beer/weed and strippers if they win the match!

The match will be at 23:00, so i have some time to think, swich, change, switch back, think again, etc...