Penn State's Bill O'Brien No Stranger to Adversity - The New York Times
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Bill O'Brien reportedly 'primary target' for Patriots' OC position
500 Days of Bill O'Brien and Penn State Football: The Biggest 53
If O'Brien goes, Penn State could be owed $18.4 million
Penn State's Administrative Dysfunction Pushed Coach Bill O'Brien Back To NFL
Alabama hires Bill O'Brien as offensive coordinator
Patriots hire Bill O'Brien as offensive coordinator, can he get Mac Jones on track?
Patriots bring back Bill O'Brien as offensive coordinator
O'Brien looks for answers for PSU's late letdown
Sources: Patriots offensive coordinator Bill O'Brien agrees to become coach at Penn State
Bill O'Brien at Front of Line for Major College Coaching Jobs
AP source: Bill O'Brien agrees to return as Patriots OC - The San Diego Union-Tribune