The list that follows is the shadow cabinet led by nick clegg from 2007 to 2010, before the liberal democrats and conservatives formed a coalition government following the 2010 general election, and clegg became deputy prime minister of the united kingdom. Since 2005, tim has held several parliamentary roles for the liberal democrats. following his election in 2005, tim was appointed parliamentary private secretary to the then party leader, ming campbell. he was promoted to the lib dem shadow cabinet in 2007, becoming shadow minister for environment, food and rural affairs.. Lib dems announce shadow cabinet. posted on 2nd may 2007 by darren fower (gunthorpe ward) (02/05/07) lib dems on cambridgeshire county council have announced their new shadow cabinet. david jenkins, county councillor for cottenham, histon and impington, will head up the new team as leader of the group..