I took a shot and sent them an email asking about Whitworth and the perception some have that he's slowing down late in the season. They replied within a couple hours. For what it's worth:

Thanks for reaching out! Rams OT Andrew Whitworth is still having an awesome season, allowing just 19 total pressures all year. However, he has allowed 8 of said pressures in just the last three games. That’s likely due to a combination of season wear/tear and the level of competition he’s faced off the edge these last three games.