Analysis: Backups, be ready. NFL’s QB carousel is spinning


              Los Angeles Chargers quarterback Justin Herbert (10) fumbles the ball as he is sacked by Jacksonville Jaguars defensive end Dawuane Smoot (91) during the first half of an NFL football game in Inglewood, Calif., Sunday, Sept. 25, 2022. The Jaguars recovered the ball. (AP Photo/Marcio Jose Sanchez)
            
              Miami Dolphins quarterback Tua Tagovailoa (1) is assisted off the field during the first half of an NFL football game against the Buffalo Bills, Sunday, Sept. 25, 2022, in Miami Gardens. (AP Photo/Rebecca Blackwell)
            
              New England Patriots quarterback Mac Jones (10) is helped off the field after suffering a leg injury with less than two minutes to play in the second half of an NFL football game against the Baltimore Ravens, Sunday, Sept. 25, 2022, in Foxborough, Mass. (AP Photo/Michael Dwyer)
            
              New England Patriots quarterback Mac Jones (10) is helped off the field after suffering a leg injury with less than two minutes to play in the second half of an NFL football game against the Baltimore Ravens, Sunday, Sept. 25, 2022, in Foxborough, Mass. (AP Photo/Michael Dwyer)