USATF just named the team, most of the expected athletes are there. Most notable athletes missing from the 800 are Donavan Brazier, Kate Grace, Brenda Matinez and Ajee Wilson. Not having Wilson and Matinez is especially tough because they are super reliable. Most notable athletes missing from the sprints are Bromell and Felix. Felix is the toughest loss because she's capable of running all of the sprint relays and like Ajee Wilson is super reliable. Obviously you would like to see all of the top athletes, but that's never going to happen and I like the fact that some new guys get a chance.
It is going to be tough and interesting for the U.S. I would not rank the U.S. number one I any of the relays. The other countries are basically bring their full national teams. I could see the U.S. men and women finishing no better than 3rd in the 4x8. On the men's side Kenya and Poland will likely go 1 and 2 and on the women side Kenya and the Ukraine will likely go 1 and 2. The Bahamas could possibly win the men and women's 4x4 and I expect Canada, GB and Jamaica to be real tough in the 4x1 and 4x2.