How can you improve your team?

[Tactician]

I have noticed that too.
Some of the strange factors that appear to affect the team's performance are as follows.

• buying or selling a player (this should not be case if the player you have sold is far from a key player; players bought should not affect the team negatively as it should be improvements)
• adding a lot of friends (this should not be the case)

Some players with certain nationalities also seem to flop more.