Okung is the only guy playing the position he played in college. The rest of the line has 2 DL converts, 1 OL playing a new position, and former college TE converted into an OL. Therein the problem too many projects on the starting line. In 2013, only Sweezy was a conversion project. Okung/Bailey/Bowie were OL in college, Unger was a veteran OL, and Breno was a vet OL. So 4 of the 5 guys were experienced OL or had exp playing the position in college. That was probably the best year for the OL. Last season, Okung/Bailey, Carp, Unger/Lewis/LJP, Sweezy and Britt. Sweezy was still the only conversion project. Britt was RT but he played tackle in college. So not many projects. This season...multiple changes and project players on the starting line. It's too bad that the Rams game was so early in the season, they may get better as it progresses but I don't think they would have been able to stop the 49ers or Jags DL with the current OL.
The Rams penetration from just a 4 man pass rush was hard to handle. Games are won in the trenches and the Seahawks only win that battle on the defensive side. They get mauled from an offensive perspective. Wilson and Lynch cover up a lot of OL deficiencies but against a terrific, speedy line like the Rams they faltered. Wilson had no time and Lynch got stopped for rare losses (usually he's able to power forward for gains but yesterday he had no chance).