How to beat 4-1-1-3W-1?

Hello, I am new in the forum and this is my first post. There is a manager in my league who generally plays with this formation.

DR-DC-DC-DL
DMC
MC
AMR-AMC-AML
ST
His team is better than mine, approximately %110 quality for our level and mine is %108. His defence players are 18 years old and 3 of them are %105 and one is %122, probably by personal trainer. I am also token buyer, my first 11 was %130 last season, but making an 18 years old player to world class level is more than I can afford. So friends, what are your suggesstions? Thanks for your suggesstions by the way.