It is leaky against better teams especially away from home. However, against most teams you neutralize their attacks very high up the pitch, meaning you're very rarely defending.
A 4-2-4 featuring and industrious midfield duo that does it all. The forwards to get in behind and the wingers to drag the fullbacks wide creating one on ones. Very aggressive defensive line for an all or nothing approach. Always runs up huge scores but sometimes leaks goals away from home...