Longest current tenure in League One

Longest-serving managers in League One
Manager Days
Nigel Clough (Mansfield Town) 1817
Dave Challinor (Stockport County) 1456
Richie Wellens (Leyton Orient) 1329
Johnnie Jackson (AFC Wimbledon) 1261
Gary Caldwell (Exeter City) 1100
Grant McCann (Doncaster Rovers) 900
Graham Alexander (Bradford City) 722
Michael Skubala (Lincoln City) 715
Darren Moore (Port Vale) 623
Alex Revell (Stevenage) 559
Gary Bowyer (Burton Albion) 315
Kevin Nolan (Northampton Town) 309
Steven Schumacher (Bolton Wanderers) 271
Conor Hourihane (Barnsley) 230
Ryan Lowe (Wigan Athletic) 230
Matt Hamshaw (Rotherham United) 212
Lee Grant (Huddersfield Town) 153
Tom Cleverley (Plymouth Argyle) 137
Brian Barry-Murphy (Cardiff City) 134
Michael Duff (Wycombe Wanderers) 40
Jack Wilshere (Luton Town) 15
Ian Evatt (Blackpool) 7