First of all, you need a clear team-building idea, whether to play Spanish-style passing, Italian-style chain defense, or to build a star with outstanding personal strength like Brazil. You are well aware of these team building plans.
If you want to win by building an impeccable defense, then you need to buy a group of defensive midfielders and defenders, stack a large number of defensive players in front of the penalty area, block the opponent's attack with muscle forest and iron will, and use players who dribble well in the frontcourt to win the game.
If you want to destroy your opponent's resistance through sharp attack, then you need to sign a large number of offensive players, improve the attack efficiency, use the tactics of long pass and hanging shot, and catch the ball for the powerful center through sharp flank breakthrough. Or through smooth passing and cooperation, through the mercury-spilled ground attack to achieve the final victory.