Getting people who actually know about soccer / football to cover the matches is a good idea; I think I would have been inclined to have some more familiar faces and voices as well to make the enterprise seem a bit less foreign to US viewers.
I liked this bit:
My sense from the selected sample around me is that US interest in soccer is growing steadily over time. Now if only I could get my slingbox to work ...
If NBC managed to get a prime-time audience for curling at the winter Olympics, the cable network can surely generate buzz for the world's most popular sport.