Juventus, Inter Milan, and AC Milan are collectively known as the "Northern Three Giants" of Serie A. Juventus is the absolute hegemon of Serie A, while AC Milan carries the flag for Serie A in the Champions League. For a long time, Inter Milan has been in an awkward position. If it weren't for the "Telephone Gate" scandal during the 2006 World Cup, Inter Milan would likely have fewer Serie A championship trophies than AC Milan, and it's even possible that their history of no Serie A titles since 1989 would still be ongoing. Inter Milan should thank Mourinho, as it was he who truly brought Inter Milan to the heights of a world-class team. How do you prove you're strong? Only championship trophies can prove it. In the 2009-10 season, Mourinho led Inter Milan to win the Serie A, Coppa Italia, and Champions League "Treble," an achievement that neither Juventus nor AC Milan have accomplished. Beyond the Northern Three Giants, the rest of the teams have a significant gap. These teams also produce stars, but they are usually poached by the Northern Three Giants or other top clubs in the five major leagues once they show potential. As long as the offer is tempting enough, they will let them go. Take Atalanta, for example, which has produced famous players like Caniggia, Inzaghi, and Vieri. But as soon as big clubs make an offer, they sell them. How can they compete with the Northern Three Giants? To this day, they have not won a Serie A league title, and it…