Kenny Shiels in May 2007, as their head of youth. He left Tranmere in June 2010 to become assistant manager at Kilmarnock, following his three-year stint at the club. After Mixu Paatelainen left Kilmarnock to become manager of the Finland national football team, Shiels became caretaker manager. His first game in charge was a goalless draw with St Johnstone on 2 April 2011. On 15 June 2011, he became manager of Kilmarnock on a permanent basis and upon being manager, he soon added Jimmy Nicholl as his assistant manager, who just quit Cowdenbeath. He helped Kilmarnock achieve their first home win against
Marko Nikolić (football manager) before being promoted to the senior squad in 2008. He served as assistant manager to both Mihailo Ivanović and Aleksandar Janjić, eventually replacing the latter one on 26 October 2008, after the club earned just five points from the opening nine fixtures. Three days later, Nikolić became the youngest manager ever in the top flight of Serbian football, recording a 1–0 win over Vojvodina. He ultimately managed to save the club from relegation that season, finishing in ninth place. On 23 May 2011, two rounds before the end of the 2010–11 season, Nikolić secured a spot in the 2011–12 UEFA