What will the defense have to do against the saints in order for people to change their mind about them

Change their mind? Not sure which angle you’re taking, but assuming you mean people still not giving the Pats defense respect despite a respectable start, I’ll say they have to not give up more than 20 points and win the game. If they do that, the hot sportz take of next week will be that the Patriots defense has risen from the ashes like the Phoenix.