I mean I'm excited for Green and Yedlin and a few others, but the goalkeeping pipeline (or lack thereof) has me shook.
I don't think Guzan is ever going to be more than a #2, he's 29 already. Rimando is Howard's age and a non-factor.
As for the kids, you have Hamid (23), Johnson (25) and Cropper (21). The first two have had tryouts in the Premier League but weren't signed. Cropper is overseas but on the Southampton U-21 team. Johnson is the only one who's started a game with the senior team, shutting out Costa Rica last year in the Gold Cup -- not sure how many of those Costa Ricans are on their quarterfinal World Cup squad. Only 8 Americans are on both teams.
I know there's four years to figure it out but DAMN replacing Howard will be difficult.