I mean let's be honest, we can all do that. Here's Mancini's list:
Saudi Arabia
USA
Finland x 2
Liechtenstein x 2
Greece x 2
Bosnia x 3
Armenia x 2
Netherlands
Poland
Northern Ireland
Bulgaria
Lithuania
San Marino
Turkey
Czech Republic
Switzerland
Wales
Austria
Belgium
Spain
England
I feel like people have never watched international football before. Most of the teams anyone beats are going to be shit. But obviously Mancini only won against the worst manager in history on penalties, so he can't be all that either.