Longest current tenure in Championship

Longest-serving managers in Championship
Manager Days
Phil Parkinson (Wrexham) 1625
Kieran McKenna (Ipswich Town) 1457
John Mousinho (Portsmouth) 1057
Nathan Jones (Charlton Athletic) 677
Chris Davies (Birmingham City) 554
Paul Heckingbottom (Preston North End) 479
Frank Lampard (Coventry City) 379
Gary Rowett (Oxford United) 357
Alex Neil (Millwall) 347
Mark Robins (Stoke City) 345
John Eustace (Derby County) 302
Valérien Ismaël (Blackburn Rovers) 290
Ryan Mason (West Bromwich Albion) 193
Sergej Jakirović (Hull City) 184
Gerhard Struber (Bristol City) 176
Julien Stéphan (Queens Park Rangers) 170
Martí Cifuentes (Leicester City) 150
Henrik Pedersen (Sheffield Wednesday) 134
Chris Wilder (Sheffield United) 88
Javi Gracia (Watford) 65
Tonda Eckert (Southampton) 40
Philippe Clement (Norwich City) 24
Vítor Matos (Swansea City) 18
Kim Hellberg (Middlesbrough) 15