He said: "I worry about losing him because the job he has done is fantastic. To get any team playing the way we have for the last couple of seasons is some achievement.
"We play the right way. It is attractive to watch and it is still a travesty the better team lost at Wembley.
"So it is vital the manager stays. Just look at the way the team played at Wembley, and I hope every fan who came to that game was proud of us because they should be."