You've got the idea - that fantastic, career-making idea, the one that can take you to the next level - or the one that will give you the opportunity to jump out on your own to start your own business.
But you can't get anyone's attention or support. You talk to them and their eyes glaze over. They don't respond to your email requesting the meeting. In frustration, you end up being too pushy and get a door slammed in your face. Or, you're so afraid of rejection you never pitch it at all to the people who can really escort you into the big leagues.
If you're not careful you'll end up thinking your idea is no good, and that's not it at all! A great idea isn't enough by itself. You've got to distill it down to it's most pitchable essence, and pitch it until even your mother can understand why it's a gotta-have. BUT you have to be do it naturally, in truly heart-felt ways that hit the listener's hot buttons without coming across too salesy. This takes more than just practice, it takes an understanding of the persuasion techniques that make a good pitch for your audience. And you need to run it through its paces before you hit the big leagues.