Before they play the Giants this coming weekend, the Ravens have made a major change, firing offensive coordinator Marc Trestman and replacing him with former Eagles and Jets OC Marty Mornhinweg.
Why might the Ravens' major change hurt the Giants? Because teams that change their offensive coordinator tend to have immediate success with their new guy. Click through the slideshow as we examine past instances, and how those teams have responded.
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The axed guy: Joe Lombardi got canned just seven games into his tenure as coordinator with the Lions scuffling at 1-6.