The London Diamond League was pretty much what I thought it would be – best meet of the year and perhaps a preview of several events in Moscow. If this weekend was any indication, we’ve got a Wild West shoot out kind of World Championships coming up, because there just aren’t that many “sure things” out there this year. But that’s a good thing, because it means we’ll have a week of exciting track and field in store with so many event titles / medals up for grabs. In event after event, London showcased excellent competition with few winners decided before things got started, and a few surprises along the…