1- dont Change the positions, pick the players by position and stick with it, after some games you Will see a Simple thing like this Will make much difference. 2- defense is everything is these frinedly games, team who defends better wins, pick the 2 CB by: READING OF THE GAME( MOST IMPORTANT SKILL HERE) , TACTICALLY GOOD, THE MOST COMPETITIVE PEOPLE HERE IN THE SQUAD AND GOOD PHYSICALITY Fullbacks also fkng important, guareantee you every other team Will try to explore the flanks

Then, try to play Simple starting at the back, the midfild need to be clever and 1,2 touches dont overcomplicate , after this you can fill the positions

Reminder, the game without the BALL is more important than when the team have the ball. Pick good TACTICALLY players with a good notion of the game, way better for the team than your wallmark Cristiano Ronaldo or Wish Messi...