Many people are really bad writers. Further, many people are really bad readers. Restricting yourself to email with someone who functions better on the phone or in person is just asking that relationship to collapse. At some point one of you will take something the wrong way, or write something the wrong way, and you'll just get deeper and deeper resentment and other fundamental causes of relationship dissolution.

If you're working with someone who doesn't "get" email, even if they think they do, you do everyone a favor by manning up and calling when you have to and meeting in person when possible.