The side that Bradley put out was pretty poor, even by US standards. He didn't pick many deserving MLS players, and any side with Josh Wolff in it is bound to fail.
That said, the match really showed the gulf between the nations at the moment. Not just in talent, but in composure in big atmospheres.
Regarding the future? Jawesome has it right - college soccer is a huge detriment for US players. Players coming from that system have to be retaught so much of the game that they inevitably fall behind in their development. College soccer here is about athleticism and work rate, with almost no emphasis on technique, skill or tactical awareness. So they churn out players who will run all day, but have no idea where to run, or what to do with the ball at their feet under pressure. Until college soccer is cut out of the equation, US Soccer's progress won't "take off" as predicted.