I've said it before and I'll stick to my guns.
The Saints need to be developing the 'heir apparent' NOW! Montana had Young in the right seat for a good while before he took the wheel. Favre had Rodgers.

If we don't want several iterations of the revolving door, the team needs to work the issue and not let it all ride on 'two more years' from Drew. I still have nightmares of the QB circus and refuse to believe we could go back to the carousel of: Brooks, Tolliver, Hobert, Delhomme, Wuerffel, Collins, Shuler... No identity forever on Offense. If Brees goes down (and odds are he very well can) what are we left with?

Young only sat because Montana was the greatest QB EVER and still playing at peak level. Young didn't have to sit. That was also 30 years ago.

Same with Rodgers. The only reason he didn't start year 2 was because Favre kept not-retiring.

I can't think of a single great QB today that sat for 3 or 4 years behind anyone.