It was a busy 2021 offseason of NFL quarterback movement, with the Rams and Lions kicking things off in January with a swap of signal-callers and the NFL draft in April featuring five first-round QBs.
By my count, 10 NFL teams brought in veterans who are likely to start immediately or picked a rookie in Round 1. (I'm not including the Saints or Eagles, who will have new starters who were on the roster a year ago.) With the Bears doing both of those things, that gives us 11 potential starting quarterbacks on new teams for the upcoming season.