Kevin Bell, regional president for the UK, Africa and the Middle East at Fleishman-Hillard, makes the claim in an exclusive Public Affairs Essay published with this week's edition of PRWeek.
He says that Cameron's chief media strategist Steve Hilton has been successful at ‘harnessing new, innovative methods' to present Cameron as an ordinary family man, but says Hilton must move on to the next stage.
‘This second phase of the Hilton plan remains unsettlingly unfinished,' he warns. ‘The Hilton rebranding exercise has worked brilliantly for the leader, but has barely touched the surface in showing the modern face of the Shadow Cabinet.'
In another essay, Hill & Knowlton MD Tim Fallon says that the mainstream electoral fight is now over the hearts and minds of ‘green England'. He argues that while Cameron has seized on ‘green agenda photo opportunities', it is Labour's David Miliband that is best placed to take advantage of this shift.
In a third essay, Peter Bingle, chairman of Bell Pottinger Public Affairs, says lobbyists have nothing to fear from a change of prime minister.
‘After a period of what may well be a difficult transition, the public affairs industry will start to understand the Brown government,' he predicts.
But, he adds: ‘Unfortunately, this may come at the moment when a very different Conservative Party enters government.'