Try to name the NFL starting quarterbacks who have no more than one unbeaten team in the league. The unbeaten team, if any, is given. Separate groups reflect the changing number of teams in the NFL.
Source: https://www.pro-football-reference.com/friv/qb-wins.htm
The unbeaten team is *usually* the one they played for.
Two QBs played for multiple teams and didn't ever beat one of them despite playing against them.
One QB played for multiple teams, but NOT the unbeaten one. (Marked with an asterisk)
Josh Allen still has one more team to beat (Eagles) and will have an opportunity next season. Lamar Jackson will get a chance to beat both of his remaining teams next season. Dak Prescott also has two to go, but will have to win the Superbowl against the Bills to get there next year.