Bayern Munich Training PES 2010

Hello, I’ve been playing Pro Evolution Soccer for years (I have to create Bayern since 2009 but this year they’re in Pro Evolution Soccer 2011 YES) and I use the 4-3-3 formation with one defensive midfielder and two attacking midfielders, but I just moved up to normal level (I’m 15 years old). It took me a while to get there, and I see that with Bayern, this formation isn’t great (especially defensively). What would you recommend?
Thank you