Griffin contends adding the former Louisville star with the 32nd overall pick of the 2018 NFL Draft helps the team.
"When they drafted Lamar, I didn't look at it as a shot at me or a shot at Joe," Griffin told USA Today. "It was 'OK, Lamar is coming in here, and it's our job to help him learn the offense and help him compete.' So, for me, my job is to show them that I'm an asset to the team and not a detriment."
Griffin and fellow former Heisman Trophy winner Jackson shared second-team snaps in organized team activities last week. For his part, Griffin feels he has more to offer.
"I look at myself as an old, young guy," Griffin said. "I'm 28, so I'm still young. But I've been around the block. I feel like the chips have been stacked against me numerous times throughout my life -- not just my career. The biggest thing I learned last year was, whatever your first instinct is to do when you are faced with an obstacle, when you face a challenge in life, that's who you are.
"I feel like I'm a fighter. My first instinct is to continue to keep swinging, continue to keep trying, perfect my craft as best I can."
Griffin, who was selected one pick behind Andrew Luck of the Indianapolis Colts, was named the 2012 NFL Offensive Rookie of the Year. He spent four seasons in Washington, but his career-high totals in both passing touchdowns (20) and rushing scores (seven) came during his rookie season.
The 28-year-old Griffin completed 59.2 percent of his passes with two touchdowns and three interceptions in five games during the 2016 season with the Cleveland Browns. He did not play in 2017.
Jackson, who is the 2016 Heisman Trophy winner, offers a much more dynamic skill set than Flacco, passing for more than 3,500 yards and running for more than 1,500 in each of the final two college seasons.
The 33-year-old Flacco is coming off a sub-par season, throwing for 18 touchdowns against 13 interceptions while posting a career-worst 5.7 yards per attempt. Hampered by a back injury, Flacco completed 64.1 percent of 352 pass attempts for 3,141 yards.
Flacco guided the Ravens to a Super Bowl championship following the 2012 season and is entering his 11th campaign.