I found this article from the Sporting News very interesting and well-written regarding Klinsi's management style and how the USMNT players are reacting to him.
The net of it, in my opinion, is that there's nothing here that we haven't heard before from German and Munich players (especially Philip Lahm) about how Klinsmann operates. It's just now being translated to the U.S. game and our players. To steal from a contemporary movie reference, we're used to a Don Revie-type tactics-based strategy, and what we've now got is a Brian Clough-type coach who's more worried about motivation and style. The problem is that a "motivator" like Klinsmann needs an assistant who's good with tactics, like Peter Taylor was with Clough and like Joachim Low was with Klinsi in Germany. The article certainly makes it sound like Martin Vasquez isn't up to that task for the USMNT.
It doesn't surprise me at all to learn that some of the older players aren't buying into the new style, because that's not what they've been playing with pretty much their whole career. It might even be considered "not the American way," at least historically. I don't think it will keep us from qualifying for the World Cup in a weak region like CONCACAF (though that's not out of the question if we keep spiraling downhill), but this provides an interesting insight into what's going on beyond the reach of the TV cameras.