Longest current tenure in League One

Longest-serving managers in League One
Manager Days
Nigel Clough (Mansfield Town) 1833
Dave Challinor (Stockport County) 1472
Richie Wellens (Leyton Orient) 1345
Johnnie Jackson (AFC Wimbledon) 1277
Gary Caldwell (Exeter City) 1116
Grant McCann (Doncaster Rovers) 916
Graham Alexander (Bradford City) 738
Michael Skubala (Lincoln City) 731
Darren Moore (Port Vale) 639
Alex Revell (Stevenage) 575
Gary Bowyer (Burton Albion) 331
Kevin Nolan (Northampton Town) 325
Steven Schumacher (Bolton Wanderers) 287
Conor Hourihane (Barnsley) 246
Ryan Lowe (Wigan Athletic) 246
Matt Hamshaw (Rotherham United) 228
Lee Grant (Huddersfield Town) 169
Tom Cleverley (Plymouth Argyle) 153
Brian Barry-Murphy (Cardiff City) 150
Michael Duff (Wycombe Wanderers) 56
Jack Wilshere (Luton Town) 31
Ian Evatt (Blackpool) 23
Leam Richardson (Reading) 16
Luke Williams (Peterborough United) 15