It doesn’t sound like a plan. It sounds like someone asked the question and he said “if he was needed there he could play it.”
I think the plan is to try to make Penning work at LT and Fuaga at RT. And Saldiveri at LG. If it works it could be great. If it doesn’t it could be a disaster.
When he was asked, he didn't rule out how the rest of the draft could play out and post draft free agency in reference to the LT position. Doesn't sound like they're just penciling Penning in at starting LT just yet.