Longest current tenure in League One

Longest-serving managers in League One
Manager Days
Nigel Clough (Mansfield Town) 1946
Dave Challinor (Stockport County) 1585
Richie Wellens (Leyton Orient) 1458
Johnnie Jackson (AFC Wimbledon) 1390
Grant McCann (Doncaster Rovers) 1029
Graham Alexander (Bradford City) 851
Michael Skubala (Lincoln City) 844
Alex Revell (Stevenage) 688
Gary Bowyer (Burton Albion) 444
Kevin Nolan (Northampton Town) 438
Steven Schumacher (Bolton Wanderers) 400
Conor Hourihane (Barnsley) 359
Matt Hamshaw (Rotherham United) 341
Tom Cleverley (Plymouth Argyle) 266
Brian Barry-Murphy (Cardiff City) 263
Michael Duff (Wycombe Wanderers) 169
Jack Wilshere (Luton Town) 144
Ian Evatt (Blackpool) 136
Leam Richardson (Reading) 129
Luke Williams (Peterborough United) 128
Jon Brady (Port Vale) 59
Liam Manning (Huddersfield Town) 45
Gary Caldwell (Wigan Athletic) 18
Matt Taylor (Exeter City) 3