With the expectation of a series of new cabinet appointments (though not Attorney General, apparently) comes the expectation of a number of bruising nomination fights on the floor of the Senate. In particular, Senate Republicans seem to want to collect a scalp if UN Ambassador Susan Rice gets nominated to succeed Hillary Clinton as Secretary of State. They blame Rice for providing false information about the attack on the consulate in Benghazi.
Republicans may or may not have the muscle to get this done. But they certainly would not if Democrats simply ended the undemocratic, extra-Constitutional super-majority Senate through changes to the rules process.