Los Angeles Rams Start-Sit: Week 15 Fantasy Advice for Matthew Stafford, Kyren Williams, Davante Adams, Puka Nacua, and Others

Fantasy football Week 15: Start-sit advice and analysis for Los Angeles Rams stars.

The fantasy football landscape shifts each week, bringing fresh opportunities and unexpected challenges that separate the prepared from the pretenders. Savvy managers know that last week’s performance tells only part of the story, and diving deeper into the underlying metrics reveals the accurate picture.

This week presents some intriguing decisions. Here’s insight about key Los Angeles Rams players heading into their matchup with the Detroit Lions to help you craft a winning lineup.

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Matthew Stafford, QB

He’s back; that didn’t take long.

After the Panthers tied him in knots, Matthew Stafford was back to his efficient ways on Sunday in the desert, burning the Cardinals for 281 yards and three scores on his 22 completions. That gives him seven straight with multiple touchdown passes and seven 3+ TD and 0 INT efforts in his last 10.

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Week 14 was the seventh time this season that he averaged north of eight yards per pass, and that’s exactly what it takes to produce QB1 numbers with this profile. He’s a top-5 option at the position for me against a defense that has allowed 18+ QB points in three straight and in five of six following their Week 8 bye.

Blake Corum, RB

I wish I could get there with Blake Corum. He continues to look great in the work he is given, and he’s clearly a part of the plan.

First Quarter RB Details at ARI

  • Corum: 6 carries for 48 yards and a TD (long run: 18 yards)
  • Kyren Williams: 3 carries for 30 yards (long run: 18 yards)

But Kyren Williams isn’t going away, and Corum is, at best, fourth in terms of TD equity on this offense. That means that above-average volume is a long shot, and chasing a score is a poor percentage play.

His 209 yards on 19 carries over the past two weeks are great to see as he enters his third season in 2026: for 2025, I still think he’s fighting an uphill battle in most roster situations.

Kyren Williams, RB

Williams has scored six times in his past six games and hasn’t been tackled at or behind the line of scrimmage in consecutive contests.

Is that … a bad thing?

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The Rams are exploring a committee situation and getting exactly what they want out of it: both Williams and Corum have looked fresh when given the opportunity to shine.

We’ve seen Williams transition from a volume back to one who needs to remain efficient. He’s made the transition well and remains a viable RB2 despite being held to 12-14 carries in five straight games.

The floor COULD fall out from under him in this spot against a good run defense and an offense that could force Los Angeles into a pass-centric script. In Weeks 1-9, Williams out-touched Corum 30-9 in the red zone, but his edge is just 15-11 since, and that’s where the risk comes in.

Detroit owns the third-best post-contact run defense in the league, a skill that could hold Williams to a stat line that we saw from him in Week 12 against a similarly stingy run defense in the Buccaneers (48 yards on 13 touches without a touchdown).

My mean projection for him isn’t drastically different from where we stood a month ago, but the floor component is, and that introduces a big-time dud into the range of outcomes.

Davante Adams, WR

Davante Adams is somewhat like peak Derrick Henry these days, in that you chase the strong mean and upside cases, understanding that a dud will be sprinkled in every now and again.

For Henry, the game script was the deciding factor. When his team was trailing, he was at risk. For Adams, it’s more random.

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No one in the NFL has proven capable of slowing him down inside the red zone consistently, but when the Rams strike for three touchdowns of 28+ yards, there’s only so much he can do.

Even in a week where he failed to score, the future Hall of Famer earned a pair of end zone targets: he wasn’t far off from getting you the stat line you were expecting. He gets the 10th-worst red zone defense in the league this week and will again lead the position in terms of TD equity.

I don’t like betting on touchdowns with my WR2 slot, but outliers exist, and Adams is certainly one of them.

Puka Nacua, WR

Puka Nacua cleared 110 receiving yards three times in September, and he did it again on Sunday, his first such performance since the blistering start.

He was at the center of everything Stafford wanted to do vertically against the Cardinals, something that was obvious with him reaching 130 receiving yards before any of his teammates made it to 30.

READ MORE: Soppe’s Week 15 Fantasy Football Start ‘Em Sit ‘Em: Analysis for Every Player in Every Game

Adams’ very specific role has been highly effective, but there is no debating as to who the alpha is in this system. Nacua is pacing for a career year in receptions, yards, and touchdowns. He’s on the short list of receivers that can single-handedly swing matchups, and it wouldn’t surprise me in the least if we saw an effort like that on Sunday.

Enjoy the ride this season: who knows what 2026 holds if Stafford hangs up his cleats? (For the record, I think Nacua will be great, but we are in the midst of the Justin Jefferson situation, and that has me thinking critically about everyone.)

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