While I'm also concerned about the right side, I don't think anyone can say "devoid" as an absolute. 'Undetermined' maybe. 'No one knows yet.' I'll even take 'no viable replacements so far.' But no one knows in absolute terms.
Jesse Davis? Barely a starting caliber player. Sterup? Barely good enough for a backup tackle spot, based on his play thus far. Isaiah Prince? A sixth round pick who had some good, some really bad, performances in college. Mills? Barely a starting caliber player. Daniel Kilgore, not even a top 25 center in the league.
It's bad.