I use 3-5-2, or on occasion 4-1-2-1-2 with Chelsea, Balanced Team Mentality, Short Passing Style, Committed Tackling, and Pressing on.
I went 36-1-1 in my first season, and I won everything there was to win in my first season.
Yeah... having the same nationality as the country has a improves your chances. I'm Canadian and applied for England, with Continental Rep, 3rd in Manager Rank, and didn't get it. So if you want to manage a country, try getting a different nationality.
Chelsea, in my 2nd season.
In my first season, I won everything, won Manager of the Year, my player Fernando Torres won Player of the Year (in Premier Division/League, and World)