In one of the debates (or was it a speech somewhere?) Newt listed the first 5 (?) executive orders he would issue as POTUS, all of them realistic and achievable, unlike the vague promises of all other candidates (999 anyone?) requiring legislation, compromises, etc. That’s enough to hold his feet to the fire.
http://www.youtube.com/watch?feature=player_embedded&v=_hd23sdf4CE
talks about it in this clip - also says he wont’ carry over people from the old regime...and why.
That was Bush’s biggest mistake. He held over Clinton people and the sabotaged him..