Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3380
Mikel Arteta (Arsenal) 2111
Marco Silva (Fulham) 1554
Eddie Howe (Newcastle United) 1424
Unai Emery (Aston Villa) 1066
Andoni Iraola (Bournemouth) 836
Daniel Farke (Leeds United) 821
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1554
Kieran McKenna (Ipswich Town) 1386
John Mousinho (Portsmouth) 986
Nathan Jones (Charlton Athletic) 606
Chris Davies (Birmingham City) 483
Paul Heckingbottom (Preston North End) 408
Frank Lampard (Coventry City) 308
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1791
Dave Challinor (Stockport County) 1430
Richie Wellens (Leyton Orient) 1303
Johnnie Jackson (AFC Wimbledon) 1235
Gary Caldwell (Exeter City) 1074
Darren Ferguson (Peterborough United) 1002
Grant McCann (Doncaster Rovers) 874
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 5978
Andy Woodman (Bromley FC) 1648
Dean Brennan (Barnet) 1473
Paul Cook (Chesterfield) 1330
Lee Bell (Crewe Alexandra) 1063
Mat Sadler (Walsall) 897
Micky Mellon (Oldham Athletic) 720

  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)