The Baltimore Sun reported that the team fired Zorn after a seven-hour meeting with offensive coordinator Cam Cameron and coach John Harbaugh. The coaches questioned quarterback Joe Flacco's development this season, according to the newspaper's source.
"We were able to get Jim here for a year after his head coaching job with the Redskins," Harbaugh said in a statement released by the team. "He was able to help us get back to the playoffs, and we thank him for his contributions."
Harbaugh also announced that Cameron and offensive assistant Craig Ver Steeg will share an increased role in developing the team's quarterbacks.
"We've talked about this since the end of the season, and we believe this will help improve our offense," Harbaugh said. "Cam is noted for his development of quarterbacks, and that includes Joe Flacco and Pro Bowl players like Drew Brees and Philip Rivers. Cam is excited about this change and is looking forward to it."
Flacco, a third-year pro, completed his best year statistically in 2010, finishing with 3,622 yards, 25 touchdowns and 10 interceptions.