Longest current tenure in League One

Longest-serving managers in League One
Manager Days
Nigel Clough (Mansfield Town) 1885
Dave Challinor (Stockport County) 1524
Richie Wellens (Leyton Orient) 1397
Johnnie Jackson (AFC Wimbledon) 1329
Gary Caldwell (Exeter City) 1168
Grant McCann (Doncaster Rovers) 968
Graham Alexander (Bradford City) 790
Michael Skubala (Lincoln City) 783
Alex Revell (Stevenage) 627
Gary Bowyer (Burton Albion) 383
Kevin Nolan (Northampton Town) 377
Steven Schumacher (Bolton Wanderers) 339
Conor Hourihane (Barnsley) 298
Ryan Lowe (Wigan Athletic) 298
Matt Hamshaw (Rotherham United) 280
Lee Grant (Huddersfield Town) 221
Tom Cleverley (Plymouth Argyle) 205
Brian Barry-Murphy (Cardiff City) 202
Michael Duff (Wycombe Wanderers) 108
Jack Wilshere (Luton Town) 83
Ian Evatt (Blackpool) 75
Leam Richardson (Reading) 68
Luke Williams (Peterborough United) 67
Jamie Smith (Port Vale) 7