How to win ?

You can espionage the oponent by using OA (opponent analysis). What to do next. Make sure you have more strength compared to your opponent. Then, recounter their tactical setting by use this formulation

if they played offensice, you play normal
if they played normal, you play deffensive
if they played deffensive, you paly offensive

if they played unfair, you play fair
if they played fair, you play normal
if they played normal, you play unfair
but remember, unfair play is bad for the motivation of your player

if they played 3-4-3, you play 4-4-2
if they played 4-4-2, you play 3-5-2
if they played 3-5-2, you play 3-4-3
changing formation require 5 MP... be careful