One thing I learned many years ago and have stuck to it, “Say what I mean and mean what I say.” People love to talk or tell you they will do something for you or be available for you, or they Love you or have your back (Way back)...
If you truly want something done, do it yourself. Of course there are those you can have on your team, as no person is an Island, but if there is something that absolutely must be done on time, or if it is something that will put you in a position of Greatness, Do Not rely on others to make it happen or support you. Everyone has words. Actions speak louder than words!
Live good with people, but Live good for You First!