How do you inspire innovation?

Do you ask for ideas? Do you hold creative sessions? Or do you speak like Jeff Immelt of GE who asked his teams for

"breath-taking, mind blogging, word rattling, technological innovation"

Now that is inspiring talk, that is helping people not to have an idea but to have a dream....to create something special. Both approaches are asking in reality for the same thing, but one uses words that stir emotion, that stir the company to want to create success.