I think the main thing to take out of today were how great Yedlin and Greene looked today and Besler throughout. Couple that with the potential of Brooks and I feel like if don't go a round further in 2018 we have a right to be disappointed.
If everything breaks right from a development/citizenship stand point, we could have a much more dynamic/technically skilled squad 4 years from now. Its just way too early to tell how far along the Junior Flores' of the world are going to be by then. (although he'll be 22 at that point. It will be pretty much put up or shut up time if he's going to be an elite player)
In 2018, we could boast an attacking core of Green, Fagundez, Flores, Nagbe, Johanson, Agudelo and Altidore (not to mention a guy like Bradley in the center of the midfield). Compare that to where we were just 5 years ago (when Connor Casey was starting world cup qualifiers).