I don't know what you mean by oldest, if you mean age or the longest. Longest serving manager is Arsene Wenger, the oldest is the same.
Right now it's Arsne Wenger, manager of Arsenal
alex Ferguson . Manchester united born 31st December 1941
Dean Windas
No.
ryan giggs
It is Stoke City.
English Premier League.
Teddy Sheringham
Manchester United has been in the Barclay's Premier League for 24 years. Manchester City has been in the Barclay's Premier League for 20 years.
james lehman
john burridge
Teddy Sheringham