A weekly look at what the Buffalo Bills must fix:

After watching film Monday, Bills coach Doug Marrone already made the biggest change that he could make to his team, benching starting quarterback EJ Manuel. Backup Kyle Orton will start Sunday against the Detroit Lions.

However, it's still worth diving deeper into Sunday's 23-17 loss to the Houston Texans and identifying where the offense struggled, because it wasn't just about Manuel.

We'll put the focus on the offensive line, which allowed 16 quarterback hits and whose suspect pass protection didn't do Manuel any favors in what became his final start of his initial run in Buffalo.

Yes, the Texans had J.J. Watt. He's arguably the NFL's best defensive player and he gave the Bills' offensive line fits all day. But the Texans were without first overall pick Jadeveon Clowney and were starting 34-year-old nose tackle Ryan Pickett, who signed last week. It could have been much worse.

According to ESPN Stats & Information, the Bills' offensive line controlled the line of scrimmage on just 34.6 percent of pass plays, more than 4 percentage points lower than any other team in any game this season. Only two games -- from the Arizona Cardinals in Week 7 and the Seattle Seahawks in Week 9 -- were worse last season.

Pass protection can often be a game-specific problem, so the best solution if a quarterback is under pressure is to shorten drops and add a strong dose of screen passes to keep pass-rushers honest. To some extent, the Bills did that Sunday.

But if the Bills are looking to make more of a change that carries over into Sunday, when they'll have to slow down Ndamukong Suh and the Lions' defensive line, one option is to use more play-action. The Bills ran play-action on just five of their 69 snaps Sunday.

While play-action typically keeps the ball in the quarterback's hands longer, it can also allow the offensive line to play more aggressively. That could be the right medicine for a line that was on its heels all afternoon Sunday.