Koumas has been linked with a move to Everton, Wigan, Fulham and Celtic but fellow midfielder Greening - who has played in the Premiership with West Brom, Middlesbrough and Manchester United - feels he would fire them up to the Premiership next season. "Jason is a quality player, especially running with the ball," Greening said of the 27-year-old former Tranmere player. "He's our playmaker. It's important for us to keep him but there will be a few teams from the Premiership looking at him. "Everyone enjoys working for Mowbray and sometimes you can go to a place, not enjoy it and regret the decision."