Longest current tenure in Championship

Longest-serving managers in Championship
Manager Days
Phil Parkinson (Wrexham) 1631
Kieran McKenna (Ipswich Town) 1463
John Mousinho (Portsmouth) 1063
Nathan Jones (Charlton Athletic) 683
Chris Davies (Birmingham City) 560
Paul Heckingbottom (Preston North End) 485
Frank Lampard (Coventry City) 385
Gary Rowett (Oxford United) 363
Alex Neil (Millwall) 353
Mark Robins (Stoke City) 351
John Eustace (Derby County) 308
Valérien Ismaël (Blackburn Rovers) 296
Ryan Mason (West Bromwich Albion) 199
Sergej Jakirović (Hull City) 190
Gerhard Struber (Bristol City) 182
Julien Stéphan (Queens Park Rangers) 176
Martí Cifuentes (Leicester City) 156
Henrik Pedersen (Sheffield Wednesday) 140
Chris Wilder (Sheffield United) 94
Javi Gracia (Watford) 71
Tonda Eckert (Southampton) 46
Philippe Clement (Norwich City) 30
Vítor Matos (Swansea City) 24
Kim Hellberg (Middlesbrough) 21