Marpet LG or RF??

With the release of Sweezy is it in the best interest of the team and the OL to try Marpet at LG?
We know he played well at RG. Why not put him back there and know what we’re getting and then find a new LG.
Seems to me if they try him at LG and whoever at RG their trying 2 new pieces.
Marpet may pick up LG every well and easy (played LT in colege)but why take the chance when they know what. They have at RG.

Thoughts