[6] When he was appointed manager, Sloga was fighting to avoid relegation, whilst by the end of the season, they fought for the title and to get promoted to the Premier League.
[8] With Radomlje he made a fantastic result in November 2018, as the club finished in 1st place after the autumn part of the 2018–19 Slovenian Second League season.
[9] On 4 January 2019, during the winter break of the season, Bašić left Radomlje so that he could become the new manager of Slovenian PrvaLiga club Gorica.
[13] On 19 October 2020, Bašić returned to Tuzla City (previously known as Sloga Simin Han), signing a contract with the club until December 2020 with an option to extend it.
[14] In his first game since his return to the club as a manager, he led his team to a 2020–21 Bosnian Cup second round win against Radnik Bijeljina.
[15] Bašić suffered his first loss as Tuzla City manager on 28 November 2020, in a league match against Olimpik.
[31] On 2 October 2023, after a home win over Široki Brijeg, Bašić surprisingly offered his resignation as manager, citing "poor results prior to this game", but this was hastily rejected by the club's board.
[32] On 1 November 2023, following an away loss against Igman Konjic, which was the club's seventh defeat in nine league games, Bašić left Željezničar by mutual consent.