The fact that BO has filled his cabinet with Clintonoids says nothing about the way he will govern. The 3 or 4 thousand “sub-cabinet” and below jobs that he will fill will go to fully vetted leftist radicals. They will do the damage.
And when any issue gets down to its nub, and BO has to make a decision (”Call me if need me”) is there any doubt where his instincts lie?
Obama wants to avoid drama in the Senate confirmation hearings, so he picks relatively uncontroversial people who have already held office in a prior administration. You're right, the real damage will be done by the people who actually create regulations and perform enforcement actions.