Klinsmann had his favorites, and they served the U.S. admirably for a long time. But sometimes it seemed like Klinsmann was holding on a bit too long and not preparing for the fact that some of these players may not be able to deliver very soon.

How much longer can Jermaine Jones be a starter, for instance? He looked gassed and struggled in the USMNT’s last two games, and his recent bout with injury may simply be a sign of the fact that he is 35 and it's going to be tough to count on him going forward. Klinsmann was hopeful Clint Dempsey could be a factor in the upcoming World Cup when he’ll be 35 and that's up in the air. At the goalkeeper position, Tim Howard has been slowing down and injured.

There is younger talent available that Klinsmann wasn’t willing allow to take over. The team has looked overdue for some shake-ups and Arena will be in the perfect position to start evaluating the players based on where they are now, not what they have done in the past.