Garden Pests and Diseases: What's happening to my maple tree????, 2 by LAS14

LAS14 wrote:
Two arborists told me over the phone that it could be verticilium wilt, but the first said we were out of his geographical territory. The second had seen my pictures and advised me to cut a limb and peel back the bark and if there were green streaks that would be it. If not, wait til next spring. Is anthracnose treatable?

Here are two pictures of the branch we stripped the bark from. I don't see any green streaks, but I'm not sure it was big enough. Are you familiar with verticilium wilt in trees?