Longest current tenure in League One

Longest-serving managers in League One
Manager Days
Nigel Clough (Mansfield Town) 1825
Dave Challinor (Stockport County) 1464
Richie Wellens (Leyton Orient) 1337
Johnnie Jackson (AFC Wimbledon) 1269
Gary Caldwell (Exeter City) 1108
Grant McCann (Doncaster Rovers) 908
Graham Alexander (Bradford City) 730
Michael Skubala (Lincoln City) 723
Darren Moore (Port Vale) 631
Alex Revell (Stevenage) 567
Gary Bowyer (Burton Albion) 323
Kevin Nolan (Northampton Town) 317
Steven Schumacher (Bolton Wanderers) 279
Conor Hourihane (Barnsley) 238
Ryan Lowe (Wigan Athletic) 238
Matt Hamshaw (Rotherham United) 220
Lee Grant (Huddersfield Town) 161
Tom Cleverley (Plymouth Argyle) 145
Brian Barry-Murphy (Cardiff City) 142
Michael Duff (Wycombe Wanderers) 48
Jack Wilshere (Luton Town) 23
Ian Evatt (Blackpool) 15
Leam Richardson (Reading) 8
Luke Williams (Peterborough United) 7