Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3063
Thomas Frank (Brentford) 2226
Mikel Arteta (Arsenal) 1794
Marco Silva (Fulham) 1237
Eddie Howe (Newcastle United) 1107
Kieran McKenna (Ipswich Town) 1069
Unai Emery (Aston Villa) 749
Longest current tenure in Championship
Manager Days
Paul Warne (Derby County) 789
Michael Carrick (Middlesbrough) 757
Carlos Corberán (West Bromwich Albion) 756
Rob Edwards (Luton Town) 733
John Mousinho (Portsmouth) 669
Daniel Farke (Leeds United) 504
Danny Röhl (Sheffield Wednesday) 403
Longest current tenure in League One
Manager Days
Ian Evatt (Bolton Wanderers) 1602
Nigel Clough (Mansfield Town) 1474
Jon Brady (Northampton Town) 1378
Phil Parkinson (Wrexham) 1237
Dave Challinor (Stockport County) 1113
Richie Wellens (Leyton Orient) 986
Gary Caldwell (Exeter City) 757
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 5661
Andy Woodman (Bromley FC) 1331
Paul Cook (Chesterfield) 1013
Johnnie Jackson (AFC Wimbledon) 918
Lee Bell (Crewe Alexandra) 746
Mat Sadler (Walsall) 580
Grant McCann (Doncaster Rovers) 557
  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)