Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3564
Mikel Arteta (Arsenal) 2295
Marco Silva (Fulham) 1738
Eddie Howe (Newcastle United) 1608
Unai Emery (Aston Villa) 1250
Andoni Iraola (Bournemouth) 1020
Daniel Farke (Leeds United) 1005
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1738
Kieran McKenna (Ipswich Town) 1570
John Mousinho (Portsmouth) 1170
Nathan Jones (Charlton Athletic) 790
Chris Davies (Birmingham City) 667
Paul Heckingbottom (Preston North End) 592
Frank Lampard (Coventry City) 492
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1975
Dave Challinor (Stockport County) 1614
Richie Wellens (Leyton Orient) 1487
Johnnie Jackson (AFC Wimbledon) 1419
Grant McCann (Doncaster Rovers) 1058
Graham Alexander (Bradford City) 880
Michael Skubala (Lincoln City) 873
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 6162
Andy Woodman (Bromley FC) 1832
Dean Brennan (Barnet) 1657
Paul Cook (Chesterfield) 1514
Lee Bell (Crewe Alexandra) 1247
Micky Mellon (Oldham Athletic) 904
David Artell (Grimsby Town) 859

  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)