You definatly have to search this deeper.

I would start by examinate the form your player perform in those games and then review the tactics and orders and the management during those games.

There is no safe way to play and always win but the form factor is highly important in my opinion.

I have an attacking team and I follow that mentality in home games win an oponent with normal quality, and had no losses so far.
The important thing is make your team compact and play as a team, meaning that the orders you will give will be of that kind.