Longest current tenure in League One

Longest-serving managers in League One
Manager Days
Nigel Clough (Mansfield Town) 1938
Dave Challinor (Stockport County) 1577
Richie Wellens (Leyton Orient) 1450
Johnnie Jackson (AFC Wimbledon) 1382
Grant McCann (Doncaster Rovers) 1021
Graham Alexander (Bradford City) 843
Michael Skubala (Lincoln City) 836
Alex Revell (Stevenage) 680
Gary Bowyer (Burton Albion) 436
Kevin Nolan (Northampton Town) 430
Steven Schumacher (Bolton Wanderers) 392
Conor Hourihane (Barnsley) 351
Matt Hamshaw (Rotherham United) 333
Tom Cleverley (Plymouth Argyle) 258
Brian Barry-Murphy (Cardiff City) 255
Michael Duff (Wycombe Wanderers) 161
Jack Wilshere (Luton Town) 136
Ian Evatt (Blackpool) 128
Leam Richardson (Reading) 121
Luke Williams (Peterborough United) 120
Jon Brady (Port Vale) 51
Liam Manning (Huddersfield Town) 37
Dan Green (Exeter City) 10
Gary Caldwell (Wigan Athletic) 10