William James O'Brien is an American football coach who is currently the head coach of the Houston Texans of the National Football League. He was the head coach of the Penn State Nittany Lions from 2012 to 2013.
Born: 23 October 1969 (age 48 years), Dorchester, Boston, Massachusetts, United States
Spouse: Colleen O'Brien (m. 1998)
Past teams coached: Houston Texans (since 2014),
Children: John O'Brien, Jack O'Brien, Michael O'Brien
Education: St. John's Preparatory School, Miami University, Brown University
Parents: Anne Murphy O’Brien, John O’Brien