Rams mailbag: Can Case Keenum keep up with Lions' Matthew Stafford?

Rams mailbag: Can Case Keenum keep up with Lions' Matthew Stafford?
Rams quarterback Case Keenum looks to throw during a game against Buffalo on Oct. 9. (Kelvin Kuo / Associated Press)

The Rams play the first of two games during their 10-day trip when they meet the Detroit Lions on Sunday at Ford Field.

After Sunday’s game, they will travel to England to play the New York Giants in an NFL International Series game next week.

The Rams are 3-2 after last week’s 30-19 loss to the Buffalo Bills.

Now, on to your questions. Keep them coming at @latimesklein or

Rams quarterback Case Keenum is completing 58% of his passes, four for touchdowns, with five interceptions.

In his time in Los Angeles, Keenum has not been part of any passing duels. He has not attempted more than 35 passes in a game as the Rams have mainly tried to get running back Todd Gurley going.

It would be a revealing turn of events if Keenum was forced to air it out.

Rob Boras currently oversees an offense ranked last in the NFL, but I’m not sure that necessarily qualifies him only to coach at the prep level.

Boras was promoted from tight ends coach to interim offensive coordinator with four games left in the 2015 season. The Rams went 3-1 in those games.

Coach Jeff Fisher gave Boras the permanent position in the offseason.

I don’t see Fisher making another in-season coordinator change anytime soon.

Jeff Fisher is in the final year of a five-year contract reportedly worth $7 million a season.

Despite a record of 30-38-1 in his four-plus seasons, Fisher was in line for an extension after helping to oversee the franchise’s multiple moves since the NFL signed off on the Rams move from St. Louis.

It seemed like the week after victories at Tampa Bay or Arizona would be a good time to announce something regarding Fisher and General Manager Les Snead.

But so far, crickets.

Sean Mannion has been inactive for the last four games, and that streak will probably reach five against the Lions.

His future will likely be dictated by what happens to Case Keenum after the season.

With Jared Goff seemingly poised to take over in 2017, Keenum will no doubt exercise his free-agent options. He is earning $3.6 million this season.

The Rams may thank Keenum for his services, wish him well and make Mannion the No. 2 quarterback.

Or, they could entice Keenum to stay and trade Mannion.

Receiver Nelson Spruce was inactive again last week against the Bills and probably will be again against the Lions.

Spruce suffered a knee injury in the Rams’ first exhibition against the Cowboys and has not played since.

That’s a stretch of three exhibitions and five regular-season games.

When the Rams return from London, they will have a bye before resuming the schedule Nov. 6 against the Carolina Panthers.

If the Rams were going to make a move at quarterback, that seems like a natural demarcation point to do so.

Buffalo running back LeSean McCoy ran for 150 yards against the Rams, most of them coming in the first half.

The Rams were down three starting defensive linemen, so that, no doubt, contributed to McCoy and quarterback Tyrod Taylor’s ability to run.

Defensive coordinator Gregg Williams said the Rams adjusted in the second half.

“We did a really, really good job of adjusting when we had to,” he said. “Unfortunately, maybe I didn’t pull the trigger fast enough on a couple of situations there.”

Follow Gary Klein on Twitter @latimesklein