Chargers signed Guard Mekhi Becton to a 2-year, $20 million deal

At his age, teams are betting that his best football is ahead of him. You are right in that there is some risk in switching from right to left guard, but that AAV is somewhere around 20-25 of guards and we do not know how much is guaranteed. There are still a few interesting names available. Not sure the Saints want to bank on a rookie as bad our OL was last year. If they are fully in on Carr, he is light years better with good protection.
I would hate to see the Saints get bit by playing Becton out of position after taking enough contract risks as it is. Becton is a young OL with 1st round talent and coaching familiarity. He seems worth it to see what happens wherever he’s played at. But just don’t know if that made sense for the Saints right now.

There’s still starting vet Guards available like Teven Jenkins or Dalton Risner who could be signed on short term deals. A top LG draft prospect could be eased in behind them and potentially take the starting job before or by their 2nd year.