Beware of assuming that what Cameron has achieved is all down to his becoming leader and a certain amount of default publicity that comes with that. Sure, that's partly true. But at the same time, Cameron is a talented communicator. Huhne isn't, however brilliant he is on content. I can't help but feel that what would actually be best for liberalism would be for Huhne's good ideas to be put into party policy, and perhaps for him to replace Vince Cable, since he's made such a claim for himself as an economist. Meanwhile, a leader who is better at putting across the message can communicate those ideas to the public. It's not for nothing that they're the faces the public remember.