[duncan_idaho]

Deciding to count on a rookie (either Niang or a draftee) to hold down the position seems foolhardy. They need to invest in a swing tackle and that swing tackle is likely going to start at LT for at least 4-6 games.

Here are the available left tackles:

Trent Williams (would require a long-term commitment at big money)

Russell Okung (might still have a bit in the tank but even a one-year deal is going to command a big salary)

Alejandro Villanueva (same as Okung, but likely will get 2-3 year deal)

Cam Robinson (it's his second contract, would require multiple years and be expensive)

Looking at that group, Okung and Beachum seem like better options than Peters, but they're likely to cost a bit more.
Kelvin Beachum (This is an option i like. He's 32, and very solid in pass protection. Likely going to command a mid-size deal.

Beyond that, you're into Remmers territory.