Do you think the Patriots would still be undefeated if they had Tom Brady healthy?

I think that even if they had Tom Brady back, they still would have lost that week 6 game against the Chargers. The Chargers were very hurt after that playoff loss last year and they were very angry over how the Patriots played. The Chargers would have commited the past like 3 weeks to winning that game because they want to show how good they are.