Putting a good QB behind a sucky OL is a bad idea.
The point is, you can't do that till you have a good QB, and it's more important to find the good QB than the good LT.
It seems especially important when you feel there are potential franchise-level QBs in this draft but not in the next one.
Unfortunately for da Jete but fortunately for us, they haven't hit on QB with their last three major swings (Dirty Sanchez, Darnit, McMilfson).
That doesn't mean it's the wrong thing to do.
Signing a 40 year old Ahole with a deep injury history then giving him a $112M contract with $75M guaranteed then putting him behind a sucky OL is IMO not the right thing to do.
The future cap hits are going to be massive:
Aaron Rodgers Contract Details, Salary Cap Charges, Bonus Money, and Contract History | Over The Cap