Longest current tenure in League One

Longest-serving managers in League One
Manager Days
Nigel Clough (Mansfield Town) 1849
Dave Challinor (Stockport County) 1488
Richie Wellens (Leyton Orient) 1361
Johnnie Jackson (AFC Wimbledon) 1293
Gary Caldwell (Exeter City) 1132
Grant McCann (Doncaster Rovers) 932
Graham Alexander (Bradford City) 754
Michael Skubala (Lincoln City) 747
Darren Moore (Port Vale) 655
Alex Revell (Stevenage) 591
Gary Bowyer (Burton Albion) 347
Kevin Nolan (Northampton Town) 341
Steven Schumacher (Bolton Wanderers) 303
Conor Hourihane (Barnsley) 262
Ryan Lowe (Wigan Athletic) 262
Matt Hamshaw (Rotherham United) 244
Lee Grant (Huddersfield Town) 185
Tom Cleverley (Plymouth Argyle) 169
Brian Barry-Murphy (Cardiff City) 166
Michael Duff (Wycombe Wanderers) 72
Jack Wilshere (Luton Town) 47
Ian Evatt (Blackpool) 39
Leam Richardson (Reading) 32
Luke Williams (Peterborough United) 31