Our Week 15 Start ‘Em & Sit ‘Em is an in-depth look at the weekly NFL matchups and how they will impact your lineup decisions for your fantasy football team. Our list of Week 15 running back starts and sits features regular fantasy starters, as well as lesser-known players, who are likely to exceed expectations based on a favorable matchup, or fail to meet expectations due to the strength of their opponent.

Week 15 Start ‘Em, Sit ‘Em: QB | RB | WR | TE

Start ‘Em

Tevin Coleman ATL vs. SF

At this point, it’s safe to question whether John Kuhn would be a viable play vs. the 49ers run defense. While that’s obviously a stretch, starting Tevin Coleman with confidence this week vs. San Francisco surely isn’t. Coleman has been a problem for opposing defenses this season, even in a timeshare with Devonta Freeman. Coleman has been a threat in the passing game and continues to get goal line opportunities, which you can expect to be the case vs. Chip Kelly’s pathetic excuse of a front-seven this week at the Georgia Dome. Coleman will be a solid flex-play for Week 15.

Jay Ajayi MIA @ NYJ

After getting off to a blistering start in his tenure as the Dolphins feature back, Jay Ajayi has cooled off in recent weeks. He’s settled in as more of a RB2 than RB1 in his last few games, but there are promising factors working in his favor for Saturday Night’s matchup with the Jets. While the Jets are supposed to boast an impressive front-seven defense, they’ve clearly taken the foot off the gas pedal in recent weeks. Playing in San Francisco last week, the Jets appeared to do their best 49ers impression in attempting to stop the run — allowing 193 rushing yards to Carlos Hyde. With the Dolphins still vying for the playoffs and the Jets in checkout mode, Ajayi will be a fringe RB1 this week.

Thomas Rawls SEA vs. LA

While Thomas Rawls continued to look impressive last week against the Packers, his production was capped due to the Seahawks playing from behind in the second half. With Seattle focused on getting back in the win column, you can expect them to ride the running game against a Rams team coming off a 42-14 blowout loss to the Falcons. Rawls has a great chance to find the end zone and post double digit fantasy points and will be a legitimate RB1 option for fantasy owners.

Sit ‘Em

Spencer Ware KC vs. TEN

While Spencer Ware’s production has remained steady, there are durability concerns and questions about his volume being sustainable. Last week, Ware had 20 carries for 56 yards and was vultured by Charcandrick West in a goal line situation. While the Chiefs offensive line remains effective, it’s fair to wonder how much Ware can contribute as a RB2 candidate. If Andy Reid decides enough is enough, he could turn the backfield into more of a committee than what Ware has been accustomed to. The problem is that the leash could become shorter and shorter at any point and it would be a decimating blow to fantasy owners if it came without warning this week. With the Titans featuring the league’s 3rd-best run defense, Ware doesn’t have a great chance on paper to improve upon his recent mediocrity.

Rashad Jennings NYG vs. DET

After stringing together consecutive games of at least 85 yards rushing, over a month ago, Rashad Jennings has failed to go over the 55 yard mark in his last three contests. This week, Jennings will face a stingy Detroit front-seven allowing the 7th least amount of fantasy points to opposing running backs. The Giants are turning into more of a finesse team that grinds games out and relies on their defense, who is playing at an exceptionally high level. While the offensive line’s ineffectiveness has played a crucial part in the lack of success on the ground, Ben McAdoo and the Giants can’t rely on Jennings to kickstart the offense.

Devontae Booker DEN vs. NE

After struggling out of the gate as the Broncos new lead back, Devontae Booker has been unimpressive during his audition. Based on last week’s game, it appears Denver is issuing a changing of the guard. Booker carried the ball 3 times for 1 yard and was significantly out-snapped by newcomer Justin Forsett. With the team expected to implement Juwan Thompson more into the offense, there’s no reason to believe Booker will have a prominent role in the offense barring something unforeseen. He’ll be a must-sit in this week of the fantasy playoffs.

For your final lineup decisions, check out our Week 15 player rankings and if you have any fantasy football questions, feel free to post them in our Fantasy Football Forum.