i found that too with valencia, they'd figure out the tactic your using which is a balls but when it happened to me i played a different tactic for 3 or 4 games, suffer the consequences and go back to the good tactic that your using! it worked for me anyway and my team were able to bounce back.
Other than that, like paul said, team talks and encouragement work wonders when your down! Get rid of adebayor...lol, manage interaction too, tell other team your going to win etc. then when it comes to team talk tell your players that they can win this game and encourage at half time! | 
