Question:
Who was the head coach of the team Philadelphia Union in Nov, 2013?

Context:
 Jim Curtin is the head coach of Philadelphia Union from Jan, 2014 to Dec, 2022. 
 John Hackworth is the head coach of Philadelphia Union from Jan, 2012 to Jan, 2014. 
 Piotr Nowak is the head coach of Philadelphia Union from Jan, 2009 to Jan, 2012.

Answer:
John Hackworth