I don't personally agree. I think that your second tier LT prospects from last year's draft, guys like Bulaga and Saffold are far and away better LT prospects than anybody in this upcoming draft (Solder is intriguing as a prospect, but he's really... really raw, shouldn't start as a rookie). There's a reasonable supply of right tackles though, looking at guys like Gabe Carimi and Marcus Cannon.
Their best bet is probably moving Bulaga to the left side and trying to fill a hole at RT. Though I wouldn't sleep on Newhouse, even though he collected a paycheck all year while being inactive. He has good feet and technique, he just needs to get stronger.