The Texans signed Fitzpatrick in free agency shortly before trading Matt Schaub to the Oakland Raiders, and O'Brien felt that it was beneficial to the entire team to know now who the starting quarterback would be.
"He earned it. He earned it with his preparation. He earned it with his accuracy," O'Brien said, ESPN reports.
Fitzpatrick threw for 2,454 yards and 14 touchdowns last season for the Tennessee Titans, but has insisted that Houston is where he wants to be.