I can't be arsed to do the research, but you like doing things like this, so can you tell how long the managers have been at each Championship club? I can't think of many that have been there longer than 2 or 3 years (the same as Pearson was here).
Mark Robins, Barnsley - appointed September 2009
Keith Millen, Bristol City - August 2010
Brian Laws, Burnley - January 2010
Dave Jones, Cardiff - May 2005
Ady Boothroyd, C******y - May 2010
George Burley, Crystal Palace - June 2010
Nigel Clough, Derby - January 2009
Sean O'Driscoll, Doncaster - September 2006
Nigel Pearson, Hull - June 2010
Roy Keane, Ipswich - April 2009
Simon Grayson, Leeds - December 2008
Sven Göran Eriksson, Leicester - October 2010
Gordon Strachan, Middlesbrough - October 2009
Kenny Jackett, Millwall - November 2007
Paul Lambert, Norwich - August 2009
Billy Davies, Nottingham Forest - January 2009
Steve Cotterill, Portsmouth - June 2010
Darren Ferguson, Preston - January 2010
Colin, QPR - March 2010
Brian McDermott, Reading - December 2009
Ian Baraclough, Scunthorpe - September 2010
Gary Speed, Sheffield United - August 2010
Brendan Rodgers, Swansea - July 2010
Malky Mackay, Watford - June 2009