Read other letters about this article
Perhaps the LW's narrow niche has become too confining--maybe branching out would be profitable. Also, reading the news in the field isn't exactly original reporting--try reading blogs, getting to know the innovators in this field (and not just through the PR reps.) and going to any conferences, seminars, panels, etc.
Most editors aren't expecting anyone to pitch cutting edge stories every time--just interesting ideas that appeal to their readers. Getting to know the editors at the bigger publications is a good investment--the LW should plan a trip to the city where these editors are located, and do some face-to-face meetings. Editors tend to assign work to those writers with whom they feel comfortable.
Inspiration isn't the key--doing the research, keeping in touch, paying attention--this is the heavy lifting of freelance writing. Long walks and hot baths aren't going to do it.