Who Should Lead The Medical Home Model?

http://www.kaiserhealthnews.org/daily-reports/2012/september/19/primary-care.aspx?referrer=search

Let's face it, there are shortage in primary care doctors but do you think it's enough reason to utilize other practitioners to lead the Medical Home Model? The nurse practitioners has evolved because of the same reasons...shortage in doctors. Their role has expanded in some states which now includes diagnosing and prescribing medications, but do you think that's enough?