You could hire someone in the Philippines to help with backlinks. Drawback is the training time for such a person.
You could buy a tool -- what is the best one? SENuke? Drawback is that you'd probably be the one running it (time)?
You could hire an SEO firm. Drawback: expensive, and hard to find a legitimate company that will actually deliver. Besides, you've got the site content and programming under control with your writers - no one needs to touch it. It's mainly those backlinks.
What would you do? Especially for getting lots of solid backlinks?