Nestor El Maestro. Yes, that's his name. https://www.theguardian.com/football/blog/2018/apr/29/nestor-el-maestro-serbia-spartak-trnava Currently in charge of CSKA Sofia in Bulgaria. They advanced to the next round of the Europa League after beating Admira of Austria 3-1 away (6-1 overall on aggregate) and currently top of the Bulgarian top flight after winning their opening two games, both 2-0 wins. Could hear more about him in the future.