For me, the biggest continuing surprise here is Chelsea's poor form. While they were never likely to keep up with the top 2, their position in this table shows just how many points they've squandered. With several players off to the African Nations Cup, they could easily see their place in the real table become just as dangerous.
They seem to have Cahill all but signed, but with only Sturridge available and in form up front, it's hard to see them climbing back up any time soon without further investment, or a real change of fortunes.