Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3075
Thomas Frank (Brentford) 2238
Mikel Arteta (Arsenal) 1806
Marco Silva (Fulham) 1249
Eddie Howe (Newcastle United) 1119
Kieran McKenna (Ipswich Town) 1081
Unai Emery (Aston Villa) 761
Longest current tenure in Championship
Manager Days
Paul Warne (Derby County) 801
Michael Carrick (Middlesbrough) 769
Carlos Corberán (West Bromwich Albion) 768
Rob Edwards (Luton Town) 745
John Mousinho (Portsmouth) 681
Daniel Farke (Leeds United) 516
Danny Röhl (Sheffield Wednesday) 415
Longest current tenure in League One
Manager Days
Ian Evatt (Bolton Wanderers) 1614
Nigel Clough (Mansfield Town) 1486
Jon Brady (Northampton Town) 1390
Phil Parkinson (Wrexham) 1249
Dave Challinor (Stockport County) 1125
Richie Wellens (Leyton Orient) 998
Gary Caldwell (Exeter City) 769
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 5673
Andy Woodman (Bromley FC) 1343
Paul Cook (Chesterfield) 1025
Johnnie Jackson (AFC Wimbledon) 930
Lee Bell (Crewe Alexandra) 758
Mat Sadler (Walsall) 592
Grant McCann (Doncaster Rovers) 569
  The longest managerial reign of all time in the English football league belongs to Fred Everiss, who was manager of West Bromwich Albion for over 45 years (from 1902 to 1948)