Yes Liam Fox has resigned after a week of speculation. But this has mostly gone unreported—from the FT’s Westminster blog two days ago: “Liberal Democrats will have a new special adviser covering the House of Lords and five more special advisers covering the work of government departments where the party has no ministerial support.”
*Shameless plug for previous blog post.
EDIT: since special advisers work for ministers, how can they cover departments where the Lib Dems have no ‘ministerial support’ (ie., DEFRA, DCMS, DFID, NIO, WO)? The answer is that they will probably be responsible to Nick Clegg. It’s worth noting that the Lib Dems now have a number of special advisers disproportionate to the number of seats won at the 2010 election. But on the other hand, as the Constitution Unit has suggested,** the Lib Dems are in dire need of extra support.