Tom Brady took over for Drew Bledsoe in the second game of 2001 and since then he has only ever missed 15 games because of injury and those all came in 2008. Brady was suspended for four games in 2016, but has otherwise shown up and played in 327 career starts. And he has never been worse than 9-7.
That happened in 2002, when Brady led the NFL in touchdowns during his second year as a starter, and since then he has only been 10-6 or better. Brady went 10-6 twice (2005, 2009), 11-1 once (2016, suspension year), 11-3 (2001), 11-5 twice (2018, 2020), and 12-4 or better on 13 occasions.