Who needs a deputy?
What is Labour's deputy leader actually for?
Wait a second. This is not another assault on John Prescott. It is the question that is all too rarely asked when debating his merits or those of who might come next.
Pressa sold himself to Blair first and foremost as deputy leader, not deputy prime minister. Blair saw the potential of the man who sold OMOV (one member one vote) to a reluctant party to sell 'the third way'. The implicit message was that if Prescott was happy how could anyone else complain.
Over the years he's proved invaluable and discreet. Even when dissenting on the schools reforms he acted like Labour's pressure cooker and not a focal point of rebellion. This, of course, is very different from being deputy prime minister. Even in that position though, ministers say he can knock heads and 'progress chase' in a way few others could. Now, fairly or unfairly, he's become a symbol of over fondness of office and arrogance.
Before replacing him though Labour would need to decide what job they are seeking to fill.
Harriet Harman would use the job to reach out to women voters, who David Cameron is already marching out of New Labour's big tent. But many remember her uneasy and short-lived time in charge of welfare reform.
Peter Hain has the clearest track record in advocating party reform but Gordon Brown will remember his advocacy of a higher top rate of tax and other unapproved policy kite flying.
Alan Johnson is being pushed by those in the Parliamentary Labour Party who want to ensure a Brown-led Downing Street consults and listens to others - including its backbenches (witness his soothing salesmanship of school reforms and tuition fees). They will also push his appeal to English voters. Brown may fear him as a potential long-term rival though.
None of this suggests whether any would be any good as deputy prime minister. That job doesn't have to go with being deputy leader but, as John Prescott almost certainly won't say but Margaret Thatcher did, "every PM needs a Willy"!