More former Clinton administration officials (Summers was actually in the REAGAN administration too!), and avowed proponents of globalization and free trade. In other words, these appointments directly contradict every principle Obama ran on and every reason his supporters voted for him. Suckers.
Of course, there are also voters who voted for Obama only because McCain-Palin were serious about carrying out their promises - and Obama was obviously an opportunist, who would need policies that will work in the real world well enough to get him re-elected in 2012. Clinton revisited is not heaven, but astronomically better than Obama the candidate (or an "honorable" McCain-Palin administration) would have been.