Thanks everyone!
I've just won Champions League and defeated there the team with 4.0 higher quality,
But this guy is only 1.0 higher and he's a bot - he never made substitutes and plays classical 4-4-2.
And I provided the highest bonus for my players and also started with the defensive type of play - but he started with losing 1 player and 10 minutes later he scored without 1 player with me holding tight defense.

And I changed my tactics during the game according to situation but this is obviously stupid for game logic - player who does not make any changes after losing 2 players still plays better than the one who adapts his team to losing a player.

NORDEUS, this is sucks! I can understand many issues with strategy, tactics, players mood and others - but I made all this to highest level just to see that the same quality team without 2 players and human support to substitute still leads the match them defeats me without any obvious reason...