Longest current tenure in League One

Longest-serving managers in League One
Manager Days
Nigel Clough (Mansfield Town) 1930
Dave Challinor (Stockport County) 1569
Richie Wellens (Leyton Orient) 1442
Johnnie Jackson (AFC Wimbledon) 1374
Grant McCann (Doncaster Rovers) 1013
Graham Alexander (Bradford City) 835
Michael Skubala (Lincoln City) 828
Alex Revell (Stevenage) 672
Gary Bowyer (Burton Albion) 428
Kevin Nolan (Northampton Town) 422
Steven Schumacher (Bolton Wanderers) 384
Conor Hourihane (Barnsley) 343
Matt Hamshaw (Rotherham United) 325
Tom Cleverley (Plymouth Argyle) 250
Brian Barry-Murphy (Cardiff City) 247
Michael Duff (Wycombe Wanderers) 153
Jack Wilshere (Luton Town) 128
Ian Evatt (Blackpool) 120
Leam Richardson (Reading) 113
Luke Williams (Peterborough United) 112
Jon Brady (Port Vale) 43
Liam Manning (Huddersfield Town) 29
Dan Green (Exeter City) 2
Gary Caldwell (Wigan Athletic) 2