The the Saints offensive line has sidelined 4 to 5 starting Saints QBs in the last 4yrs.

Very much this. We're also not calling balanced games and not giving them much help. You can call screens and draws to help slow down the pass rushers, we don't do that often enough. Doesn't help that Carr and Winston are both QB's that like to take shots, which is fine when you have some extra blockers on those plays but we don't and they get killed in the process.
If we don't at least try some jailbreak screens with Shaheed and swing passes with AK41 next week I'm going to be annoyed.