Longest current tenure

Longest current tenure in Premier League
Manager Days
Pep Guardiola (Manchester City) 3520
Mikel Arteta (Arsenal) 2251
Marco Silva (Fulham) 1694
Eddie Howe (Newcastle United) 1564
Unai Emery (Aston Villa) 1206
Andoni Iraola (Bournemouth) 976
Daniel Farke (Leeds United) 961
Longest current tenure in Championship
Manager Days
Phil Parkinson (Wrexham) 1694
Kieran McKenna (Ipswich Town) 1526
John Mousinho (Portsmouth) 1126
Nathan Jones (Charlton Athletic) 746
Chris Davies (Birmingham City) 623
Paul Heckingbottom (Preston North End) 548
Frank Lampard (Coventry City) 448
Longest current tenure in League One
Manager Days
Nigel Clough (Mansfield Town) 1931
Dave Challinor (Stockport County) 1570
Richie Wellens (Leyton Orient) 1443
Johnnie Jackson (AFC Wimbledon) 1375
Grant McCann (Doncaster Rovers) 1014
Graham Alexander (Bradford City) 836
Michael Skubala (Lincoln City) 829
Longest current tenure in League Two
Manager Days
Simon Weaver (Harrogate Town) 6118
Andy Woodman (Bromley FC) 1788
Dean Brennan (Barnet) 1613
Paul Cook (Chesterfield) 1470
Lee Bell (Crewe Alexandra) 1203
Mat Sadler (Walsall) 1037
Micky Mellon (Oldham Athletic) 860

  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)