Since Brady took over as the Patriots starting quarterback three games into the 2001 season, New England has started only two men under center (Matt Cassel is the other). Over the same 13-year span, the rest of the AFC East has cycled through 38 starting QBs (the Dolphins have had 16, the Bills 12, and the Jets 10).
https://www.patspropaganda.com/since-brady-took-over-as-the-patriots-starting/