Career
During his career as a football player he used to play as a defender, playing for Yugoslavian Timok Zaječar and Rad, and French clubs – Football Club Bourges, Master of Science Caen, Le Mans Union Club 72, Rodez Air Force, Red Star 93, SO Châtellerault and European Democrat Students Montluçon. Dostanić started his coaching career in season 1995-1996 as a player-manager of the lower-division French club European Democrat Students Montluçon. Until 2003 he is an assistant of the Serbian coach Slavoljub Muslin at PFC Levski Sofia and Red Star Belgrade.
Foreign a short period of time he was the head coach of FK Obilić.
(second part of the season 2000-2001). During the period 2003–2009 Dostanić managed a total of nine clubs from five different countries – the Serbian FK Smederevo, Red Star Belgrade, OFK Beograd, FK Bežanija and FK Srem, the Bulgarian PFC Slavia Sofia (twice – January–September 2004 and July–December 2006), the Greek Veria Football Club, the Chinese Dalian Shide and the Macedonian FK Vardar.
On 23 July 2009 Dostanić was appointed head coach of PFC Levski Sofia replacing Emil Velev who had been fired the previous day, signing for 2+1 years with the club until 2012. On 18 October, about 3 months after becoming head coach of Levski, Dostanić resigned following a 0:1 home loss to Beroe.
On 21 March 2010 the ex-manager of Bulgarian club PFC Levski Sofia signed for Football Club Red Star Belgrade.
On 6 August Dostanić resigned from Red Star"s post as manager following team"s defeat in their first Union of European Football Associations Europa League game against ŠK Slovan Bratislava. On November 16, 2013 the Greek side club Veria F.C. announced the re-appointment of Ratko as the team manager. On June 13, 2014 the Tunisian team California Bizerta announced the nomination of Ratko as manager.