The somewhat unconventional 4–2–1–3 formation was developed by José Mourinho during his time at Inter Milan, including in the 2010 UEFA Champions League Final. By using captain Javier Zanetti and Esteban Cambiasso in holding midfield positions, he was able to push more players to attack. Wesley Sneijder filled the attacking midfield role and the front three operated as three strikers, rather than having a striker and one player on each wing. Using this formation, Mourinho won The Treble with Inter in only his second season in charge of the club.