The club are bottom of the Premiership on goal difference, having picked up only three points but will move up if they defeat Partick Thistle on Saturday. Paul McDonald will take charge of the side for that match before Clarke takes on his full duties. Kilmarnock have announced the appointment of Steve Clarke as their new manager.The 54-year old has signed a two-and-a-half year deal at Rugby Park to become Lee McCulloch’s successor.“I’m delighted to be back in football and I’m especially delighted to be named Kilmarnock manager,” Clarke told Kilmarnock’s official website.“In my discussions with the board we spoke about stability and while we need to fix the current situation, I’m looking to provide that stability to this great club. “I’m looking forward to working with the board, staff, players and supporters to ensure future success at the club.”He will be assisted by former Blackpool and Charlton Athletic defender Alex Dyer. Clarke was out of work after leaving Aston Villa last season and has previously managed Reading and West Bromwich Albion. Prior to working as a manager in his own right he was assistant boss at Liverpool, West Ham, Chelsea and Newcastle United.McCulloch left his role at the beginning of October after failing to win any of the team’s first eight Premiership games.