Longest current tenure in Championship

Manager Days
Phil Parkinson (Wrexham) 1762
Kieran McKenna (Ipswich Town) 1594
John Mousinho (Portsmouth) 1194
Nathan Jones (Charlton Athletic) 814
Chris Davies (Birmingham City) 691
Paul Heckingbottom (Preston North End) 616
Frank Lampard (Coventry City) 516
Alex Neil (Millwall) 484
Mark Robins (Stoke City) 482
John Eustace (Derby County) 439
Sergej Jakirović (Hull City) 321
Julien Stéphan (Queens Park Rangers) 307
Henrik Pedersen (Sheffield Wednesday) 271
Chris Wilder (Sheffield United) 225
Tonda Eckert (Southampton) 177
Philippe Clement (Norwich City) 161
Vítor Matos (Swansea City) 155
Kim Hellberg (Middlesbrough) 152
Matt Bloomfield (Oxford United) 109
Edward Still (Watford) 78
Michael O'Neill (Blackburn Rovers) 74
Gary Rowett (Leicester City) 69
James Morrison (West Bromwich Albion) 63
Roy Hodgson (Bristol City) 32