It certainly is a possibility. I just think with some of the surprise players at other positions, and with Roger's going down for the season, 9 is most likely.
A 10th offensive linemen would likely keep someone like Tyson Thompson, "Pepper" Johnson, Jay Ratliff, or even Justin Beriault off the team. Plus, if you throw in that Vollers can play both tackle positions, Gurode can play C or G, Tucker can play T or G, and even Allen could be our RT in a pinch... that versatility can allow us to scoot someone like Noll to the practice squad and let us keep "Pepper" or someone who most likely wouldn't make it through waivers.
Pepper, Ratliff, Thompson... those guys have considerable upside while Tyson Walter and Ben Noll are going to be solid at best. I can't see cutting a potential very good player for either one of those OL.