Anything Over 6 or 7 wins with Winston at Qb would be considered a win

Interceptions left and right?

Brady only threw 12 INTs all of last year to 40 TDs, and the first 8 games of the season, he threw only 4 picks to 20 TD's in 308 attempts (610 total). He also had more games with no picks (5) the first half of the season than the second half of the season (4)

So statistically speaking, Brady was better the first half of the season, under "that outdated system".
And then he threw 7 in under 200 passes. Now, if you really want to get into the meat of those stats, we can look the advanced stats to show that Jameis threw the ball further and more consistently than Brady the entirety of the season. I believe he had nearly 1000 more IAY and threw for over 500 more yards while completing 20 less passes. Let that marinate. If you think that Brady was asked to do the same thing that Winston was, you either missed the 2019 season or skimmed over the 2020.