Dezhuan listed the length of head coaching tenure in the history of the Premier League, with Wenger and Ferguson top two, Guardiola fourth, and Klopp fifth.
Attached is the list of length of tenure of Premier League coaches:
1 Wenger (Arsenal) 21 years and 8 months
2 Ferguson (Manchester United) 20 years and 11 months
3 Moyes (Everton) 11 years and 3 months
4 Guardiola (Manchester City) 9 years and 3 months
5 Klopp (Liverpool) 8 years and 8 months
6 Kinnear (Wimbledon) 6 years and 11 months
7 Redknapp (West Ham) 6 years and 9 months
8 Benitez (Liverpool) 5 years and 11 months
9 Curbishley (Charlton) 5 years and 11 months
10 Arteta (Arsenal) 5 years and 9 months
11 Dyche (Burnley) 5 years and 9 months
12 Allardyce (Bolton) 5 years and 9 months
13 Houllier (Liverpool) 5 years and 7 months
14 Pochettino (Tottenham) 5 years and 4 months
15 Smith (Derby County) 5 years and 3 months
16 Eddie Howe (Bournemouth) 4 years and 11 months
17 McLaren (Middlesbrough) 4 years and 11 months
18 Robson (Newcastle) 4 years and 11 months
19 Pulis (Stoke City) 4 years and 10 months
20 Evans (Liverpool) 4 years and 9 months