You're right. But part of Klinsmann's job is to get some of our more talented, younger players ready for a game like this. By playing them in friendlies and earlier in the tournament. Instead he uses friendlies as a time to just try out random formations, playing players out of position, etc. instead of developing a coherent system and finding talented players that fit that system.
Besides, if the end goal is to have a competitive team ready for the 2018 World Cup, isn't the 2016 Copa America a perfect opportunity to get some of your younger players some valuable experience against top-level competition? Instead we trot out Beckerman and Wondolowski, two guys who shouldn't even get a sniff of the 2018 WC roster. Our starting lineup in this competition was basically the same as it was in Brazil two years ago, despite guys like Dempsey and Jones likely being too old to really rely on in Russia. That's not how you build for the future.
Spot on.