there is a little bug in italy, because the promoted team dont partecipate at the primavera 4 u20 league, only with u18, because primavera use a relegation sistem (primavera 1,2,3,4) but the game dont relegate the u20 team of the relegated serie c teams (in reality, play in juniores, the u20 semipro youth league)
the only way to have a proper sistem is to use an external db.