Brbić became president at a time when the club suffered an economic crisis and owned more than 15 million euros of debt.
[2] Brbić managed to close the economic gap and in recent years Hajduk started doing financially positive.
During the 4-year period he served as president, a number of players such as Ante Vukušić, Josip Radošević, Mario Pašalić, Antonio Milić, Dino Mikanović, Andrija Balić, Mijo Caktaš and Jean Kouassi were successfully sold for a large amount of money in order to solve financial situation.
On June 4, 2014, at a parking lot in Dugopolje, Brbić was attacked by Alojzije Šupraha, the referee chairman of the Split-Dalmatia County.
[7] In November 2014, under Brbić's governance Hajduk refused to play a derby against Dinamo in Zagreb due to the irregularities in Croatian football.
On April 1, 2016, the supervisory board of Hajduk voted 5-to-4 for the resignation of Brbić after a series of bad results on the football pitch but the true reasons were never completely explained.