FILE - In this Jan. 11, 2020, file photo, Baltimore Ravens offensive coordinator Greg Roman looks on prior to an NFL divisional playoff football game against the Tennessee Titans, in Baltimore. Roman is tweaking and refining a record-setting unit led by NFL MVP Lamar Jackson, who is expected to again be the key component of an attack with several newcomers in the mix.(AP Photo/Julio Cortez, File)

FILE - In this Aug. 15, 2019, file photo, Baltimore Ravens quarterback Lamar Jackson (8) leaps over Green Bay Packers cornerback Jaire Alexander (23) during the first half of a NFL football preseason game, in Baltimore. Ravens offensive coordinator Greg Roman is tweaking and refining a record-setting unit led by NFL MVP Lamar Jackson, who is expected to again be the key component of an attack with several newcomers in the mix. (AP Photo/Gail Burton, File)