Longest current tenure in Championship

Manager Days
Phil Parkinson (Wrexham) 1761
Kieran McKenna (Ipswich Town) 1593
John Mousinho (Portsmouth) 1193
Nathan Jones (Charlton Athletic) 813
Chris Davies (Birmingham City) 690
Paul Heckingbottom (Preston North End) 615
Frank Lampard (Coventry City) 515
Alex Neil (Millwall) 483
Mark Robins (Stoke City) 481
John Eustace (Derby County) 438
Sergej Jakirović (Hull City) 320
Julien Stéphan (Queens Park Rangers) 306
Henrik Pedersen (Sheffield Wednesday) 270
Chris Wilder (Sheffield United) 224
Tonda Eckert (Southampton) 176
Philippe Clement (Norwich City) 160
Vítor Matos (Swansea City) 154
Kim Hellberg (Middlesbrough) 151
Matt Bloomfield (Oxford United) 108
Edward Still (Watford) 77
Michael O'Neill (Blackburn Rovers) 73
Gary Rowett (Leicester City) 68
James Morrison (West Bromwich Albion) 62
Roy Hodgson (Bristol City) 31