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)