context: The Dolphins began the 2003 season with a 21-20 loss to the 2003 Houston Texans season, but they rebounded to win four straight games. During a crushing overtime loss at the hands of the 2003 New England Patriots season, Jay Fiedler was injured, forcing newly acquired backup Brian Griese to lead the Dolphins to victory the next week over San Diego. That, however, was Grieses high point, and after a good showing against 2003 Indianapolis Colts season in a losing effort (he threw for 231 yards and a touchdown in the 23-17 Colts win), he struggled against the 2003 Tennessee Titans season, throwing three interceptions in a 31-7 Tennessee win, and was highly ineffective against the 2003 Baltimore Ravens season, managing just 126 yards in a 9-6 overtime win. The Dolphins fell behind to the 2003 Washington Redskins season after Griese threw two interceptions; trailing 20-7, Fiedler came off the bench and led a comeback victory, 24-23. Miami looked like it might rebound thanks to a 40-21 NFL on Thanksgiving Day victory over the 2003 Dallas Cowboys season that took them to 8-4, but two key losses to the 2003 New England Patriots season and the 2003 Philadelphia Eagles season ended Miamis postseason hopes. Miami finished 10-6 after victories over Buffalo and the Jets.
question: Who did Brian Griese replace?
answer: Jay Fiedler