In December 2006, it was announced that Lazetić had agreed to join Partizan from Bežanija in the January transfer window, along with his teammate Antonio Rukavina.
He would become an assistant to newly appointed Teleoptik manager Ivan Tomić in October 2015, alongside Dražen Bolić.
[4] The trio performed the same roles at Partizan between December 2015 and July 2016 when Tomić resigned from his position due to poor results.
[6] In June 2018, Lazetić joined Miroslav Đukić's staff as an assistant at Partizan, replacing departed Andrija Delibašić.
In June 2024, Lazetić left TSC and joined Maccabi Tel Aviv of the Israeli Premier League.