Here are some strong candidates for the job:
He is considered the front-runner for the job by many. However, Klinsmann might need more of a break to recover from all of the stress during Germany coaching tenure. Also, there have been reports that Mexico are interested in Klinsmann, creating competion, as to who may give better pay, although I am sure he would choose the US any day.
Peckerman is known for his work with Argentina's youth national team, helping to create star players such as Juan Roman Riquilme. This is something Sunil Gulati may have in mind, considering the nest generation of US Soccer, with Freddy Adu, Micheal Bradley and Lee Ngyuen. One limitation may be Peckerman's inability to speak english fluently.
Should all fail in hiring a forein coach, we can always rely on an American coach, and who else but Bob Bradley. his work with Chivas USA should help cover up his work with the Metrostars on his resume.