Conversation so far:
When did Jürgen Klinsmann come to the U.S national soccer team?
On July 29, 2011
Was Jürgen Klinsmann successful when he was hired for the U.S. national soccer team on July 29, 2011?
What were some of Jürgen Klinsmann other accomplisments?
In 2013 Jürgen Klinsmann won the CONCACAF Gold Cup with the United States
Did Jürgen Klinsmann win any awards In 2013 when he won the CONCACAF Gold Cup with the United States ?
Jürgen Klinsmann was named CONCACAF Coach of the Year 2013
What are some other interesting aspects about the article besides Jürgen Klinsmann being named CONCACAF Coach of the Year 2013?
The U.S. struggled in friendly games early in Klinsmann's tenure, losing four matches and drawing one before ending the 2011 season with a victory over Slovenia

Question: Why did they struggle?
Self-contained rewrite: Why did the U.S  struggle in friendly games early in Jurgen Klinsman's tenure?