To some extent there might be a trickle-down effect with LT. Since Boom is only viable as a starter as a LT, and even that is in question to some extent, it means if Jackson wins the LT role they're gonna need Avila at LG.
If Boom wins the LT role, however, they may allow Jackson to compete at LG. And from there your best starting five would likely include Avila at Center.
But LG was a huge problem for us last season. And the Rams want strong pocket integrity by putting strong OGs next to the center as per Snead. This insinuates that Avila is a plug 'n play starter at LG, and he's the kind of guy who should stabilize that left side. Plus there's a reasonable chance Jackson wins that LT job this year. So overall it's the most likely spot for him.