Communicate, Communicate, Communicate

I did a recent blog post about 90-day planning.  One of the things that I didn't mentioned was the importance of communication.  Once you have your plan don't forget to communicate.  Communicate the hell out of it.  Build a communication plan around it.  Rather, a PR plan around your plan internally.
Simplify your key metrics, hold monthly meetings, send regular meetings, etc.  Just when you think you are clear, you are not.