Mean what you say, the proof really is in the pudding. You can say all the right things but if your actions don't follow them up it means absolutely nothing.
I remember I had a boss that I really liked and worked really hard for and everything was fine but at the first sign of trouble he totally threw me under the bus. Being the boss means that the buck stops with you and you have to own up sometimes. Obviously it can be an employees fault but as the overseer you have to share some of that blame.
Pointing the finger back at yourself goes a long way!