At the moment he works as a head coach of NK Interblock Ljubljana, after medical issues forced the previous coach, Alberto Bigon, to leave the club.
On 9 April 2000, the day of the Greek parliament elections, Olympiacos' chairman Sokratis Kokkalis sacked manager Alberto Bigon.
After retiring in 1998, Mitropoulos became an assistant coach to Dusan Bajevic, Alberto Bigon, Yannis Matzourakis and Takis Lemonis in Olympiacos.
Alberto Ginastera | Alberto Gonzales | Alberto Giacometti | Alberto Fujimori | Alberto Lattuada | Alberto Salazar | Alberto Burri | Alberto Breccia | Alberto Zaccheroni | Alberto Santos-Dumont | Alberto Magnelli | Alberto Cavalcanti | Alberto Ascari | Nacci Alberto | Alberto Vargas | Alberto Savinio | Alberto Romulo | Alberto Pérez-Gómez | Alberto Bevilacqua | Alberto Acosta | Alberto | Jorge Alberto Rodriguez | Alberto Ruiz-Gallardón | Alberto Mancini | Alberto Hurtado University | Alberto Granado | Alberto Cortina | Alberto Bigon | Alberto Antonini | Luis Alberto Spinetta |