His performances throughout 2011 -- 12 attracted Championship clubs Burnley , Cardiff City and Ipswich Town .
O'Neill helped Mansfield to a play - off semi-final where they lost 2 -- 1 on aggregate to York City .
O'Neill 's performances throughout 2011 -- 12 attracted Championship clubs Burnley , Cardiff City and Ipswich Town .
O'Neill helped Mansfield to a play - off semi-final where they lost 2 -- 1 on aggregate to York City .