Lewis Toshney and Toshney started again. However, after Liam Kelly received a red card, the match turned out badly for Kilmarnock who went on to concede four goals. Toshney missed Kilmarnock's next two matches due to a groin strain. After his return, manager Kenny Shiels was unsure whether to put him back on the team because he would be ineligible for the subsequent match, which was the 2012 Scottish League Cup Final, against parent club Celtic. Shiels did decide to start Toshney in the match, which was a 1–1 draw against Inverness CT Kimarnock went on to win the League Cup by
Dean Shiels cost-cutting that is due to take place at the club; manager Ally McCoist refuted this. On 8 February 2014, Shiels scored a hat-trick in the Scottish Cup, as Rangers won 4–0 against Dunfermline Athletic. On 10 June 2016, Shiels left Rangers after his contract came to an end. He had made 43 appearances for Rangers in his final season with the club, as they won promotion to the Scottish Premiership. On 25 August 2016, Shiels signed for Dundalk in the League of Ireland Premier Division citing the "lure of European football" as one of the things that attracted him to