Longest current tenure in League One

Longest-serving managers in League One
Manager Days
Nigel Clough (Mansfield Town) 1877
Dave Challinor (Stockport County) 1516
Richie Wellens (Leyton Orient) 1389
Johnnie Jackson (AFC Wimbledon) 1321
Gary Caldwell (Exeter City) 1160
Grant McCann (Doncaster Rovers) 960
Graham Alexander (Bradford City) 782
Michael Skubala (Lincoln City) 775
Darren Moore (Port Vale) 683
Alex Revell (Stevenage) 619
Gary Bowyer (Burton Albion) 375
Kevin Nolan (Northampton Town) 369
Steven Schumacher (Bolton Wanderers) 331
Conor Hourihane (Barnsley) 290
Ryan Lowe (Wigan Athletic) 290
Matt Hamshaw (Rotherham United) 272
Lee Grant (Huddersfield Town) 213
Tom Cleverley (Plymouth Argyle) 197
Brian Barry-Murphy (Cardiff City) 194
Michael Duff (Wycombe Wanderers) 100
Jack Wilshere (Luton Town) 75
Ian Evatt (Blackpool) 67
Leam Richardson (Reading) 60
Luke Williams (Peterborough United) 59