I'm so-so on Klinsmann, but if he can get the US to open up and attack, the way he did Germany, then bring him in ASAP and get to work. The US is playing in Copa America, and it should do everything to make at minimum, the Final 4 there. From there, stop having friendlies with Jamaica, Malta and the Maldives. Bulk up the "friendly" schedule with Euros. Play Portugal, Spain, France, the former Soviet states; anyone who plays soccer regularly, y'know, in the winter and spring when most leagues are in action--Don't even get me started on MLS.
Here's a freebie for Sunil: Organize a summer tournament here in the US - no more than four teams. US, England, Germany Brazil. Weeklong affair. England-Germany in the opener, Brazil-US in the nightcap. Play Game 1 in NY, Game 2 in Foxboro. Championship game in Miami, third-place game in DC. Keeps travel within reason, nice exposure for US. Eventually it grows to eight teams, gains some weight, and the US sharpens up against quality talent.
Just a thought....