David Davis is a natural contender to replace Liam Fox:

http://twitter.com/#!/alexforrestitv/status/123722659660955649

And it seems he is well aware of this fact…

UPDATE: The cracks are starting to show –  Patrick Mercer, who would love the job, has told the World at One:

“The Secretary of State for Defence is running a ministry which is under serious financial strictures but much more imp is fighting certainly one hot war in Afghanistan/Pakistan, the remains of a campaign in Libya and with all sorts of difficulties and problems and further campaigns and involvement on the horizon.The last thing that busy civil servants need and busy uniformed staff inside the Ministry of Defence is this sort of distraction with their boss.”