In his second season, he won his second and club's 13th straight Basketball League of Serbia title by defeating Crvena zvezda with 3-1 in the final series.

[4] In the stumbling first half of 2014–15 season for Partizan, Gagić played the starting center position and averaged 9.6 points and 4 rebounds over 18 Adriatic League games.

On 3 February 2015, Gagić requested a contract termination due to unpaid salaries,[5] which the club publicly classified as 'treason'[6] a day later.

On 11 February 2015, Gagić terminated his contract with Partizan and signed with Royal Halı Gaziantep of the Turkish Basketball League for the rest of the season.

[17] On 9 August 2023, Gagić signed a one-year contract with BC Wolves of the Lithuanian Basketball League (LKL).