Rio was a letdown – and I LOVE me some track and field. But the Olympics are supposed to be the pinnacle of sport, and this one just didn’t have that feel! The men’s 400 final aside, the races were good, but lacked that "oomph" factor. It was the first Games I can remember where it was over and, well it was done – as in no one was talking about it anymore. So, started looking ahead, and wrote my piece on US sprinting prospects moving forward – and got excited about the sport again! I mean, we have some kids on the level of Chandra Cheeseboro, Houston Mc Tear,…