Observer:
yuh reaching for straws... de better passing game. The 4 5 1 formation is designed to hold possession in the middle of the pitch, and at the same time protect the back four,which Ass is doing.
It offers very little going forward, hence Ass inability to create anything worthwhile with their possession. Especially since Ass wingers are not going forward as much. They are checking their runs, playing to nullify Giggs, Neville, Ronaldo, and Silvestre from coming forward.