There is a very good article from Politico about President Obama's nominations that have been held up by the Republicans:
The Senate confirmed a huge group of administration nominees on Thursday, following a tense exchange between President Barack Obama and Senate Minority Leader Mitch McConnell (R-Ky.).....
..... In a statement Thursday night, Obama said: "At the beginning of the week, a staggering 63 nominees had been stalled in the Senate because one or more senators placed a hold on their nomination. ... And so on Tuesday, I told Senator McConnell that if Republican senators did not release these holds, I would exercise my authority to fill critically-needed positions in the federal government temporarily through the use of recess appointments. ... Since that meeting, I am gratified that Republican senators have responded by releasing many of these holds and allowing 29 nominees to receive a vote in the Senate. While this is a good first step, there are still dozens of nominees on hold who deserve a similar vote, and I will be looking for action from the Senate when it returns from recess. If they do not act, I reserve the right to use my recess appointment authority in the future."
.... McConnell replied that the Democrats did the same thing when President George W. Bush was in office. Obama disagreed, saying that when Bush made his first recess appointments, a handful of nominees had been waiting for more than a month. Obama had more than 60 waiting....
I think some of those Republicans need a few more direct conversations with the President. The Republicans have responded "NO" to everything. Saying "NO!" does not demonstrate leadership.