"After spending considerable time with Jim over the last week, we think he will be an excellent fit with our team, coaching the quarterbacks and helping with our offense," Ravens coach John Harbaugh said. "We believe he enhances our staff. Jim has a tremendous history coaching at the college and pro level, especially working with quarterbacks and providing help with offenses."
The Ravens had offensive coordinator Cam Cameron work directly with quarterback Joe Flacco last season, but didn't have a quarterbacks coach on the staff after firing quarterbacks coach Jim Zorn.
"The timing is right to add a quarterbacks coach after Cam and Joe worked so closely and well together this year," Harbaugh said."It's the right step for us now."
Flacco passed for 3,610 yards, 20 touchdowns and 12 interceptions last season. He threw two touchdowns in the Ravens' AFC championship game loss to the New England Patriots, outplaying Patriots quarterback Tom Brady.
With Caldwell working with him as quarterbacks coach, Peyton Manning won three of his four NFL Most Valuable Player awards.
In a seven-year span, Manning passed for 222 touchdowns, 29,210 passing yards, a 66.5 completion percentage and a 100.5 quarterback rating.
In 2004, Manning passed for a career-high 49 touchdowns with 10 interceptions and a 121.1 quarterback rating. That's the second-best in NFL history behind Green Bay Packers quarterback Aaron Rodgers' 122.5 last season.
"I am really excited to work with Coach Harbaugh, Cam and the rest of the coaching staff," Caldwell said. "It's a great fit for me, and I'm happy they saw it that way. I can't wait to get started with the Ravens, an organization that from top to bottom is one of the NFL's best. I'm looking forward to coming to Baltimore."
Caldwell has also coached at Louisville, Colorado, Northwestern, Southern Illinois and Iowa.
Caldwell was a starting defensive back at Iowa.
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