The Chiefs are making some changes to their running back rotation ahead of their Week 7 game against the 49ers.Kansas City will no longer be starting former first-round pick Clyde Edwards-Helaire at quarterback. Instead, seventh-round rookie Isiah Pacheco will start for the team.Pacheco had a strong training camp and preseason which helped him make Kansas City's initial roster. He has largely been the Chiefs' No. 3 running back, as Edwards-Helaire and Jerick McKinnon have out-snapped him.But now, Pacheco is trying to prove that he belongs atop the team's depth chart and in a larger RJ Barrett Jersey role moving forward.Pacheco's elevation does beg a couple of questions. Why are the Chiefs trusting him and what is his fantasy outlook? Here's what we know about Kansas City's decision to start Pacheco.MORE: The Chiefs didn't provide an exact reason that they are starting Pacheco, but one can a sume that it has to do with his efficacy on the ground.Thus far in 2022, Pacheco has averaged a solid mark of 4.8 yards per carry. That has bested both Edwards-Helaire and McKinnon, though it's notable that Pacheco has produced at that clip in a smaller sample size.PlayerCarriesYards per carryIsiah Pacheco314.8Clyde Patrick Ewing Jersey Edwards-Helaire594.3Jerick McKinnon274.0It's not just about Pacheco's production; it's also about how the Chiefs use him. As noted by , 61 percent of Pacheco's carries have come from under center compared tojust 29 percent for Edwards-Helaire.As such, if the Chiefs want to operate under center more, it would behoove them to use Pacheco. Soon, we'll see if that is their primary reason for changing up their backfield rotation.MORE: Pacheco's elevation to the lead-back role means that he will certainly see more touches than he has in previous weeks. But will he be a true workhorse? Julius Randle Jersey It doesn't seem like it.NFL Network's Ian Rapoport reports that both Pacheco and Edwards-Helaire "are expected to see significant snaps" against the 49ers. It's unclear what the exact split will be, but Edwards-Helaire is expected to retain "a key role on offense."As such, it sounds like Pacheco and Edwards-Helaire may see relatively equal work in Jared Harper Jersey this one. Pacheco may just get more chances on early downs than Edwards-Helaire while the veteran will get more work in obvious pa sing situations. This lines up well with their skill sets, asEdwards-Helaire has 16 catches this season compared to two for Pacheco.Either way, you can feel comfortable starting Pacheco as flex in fantasy. He should get enough of the Chiefs' 24.3 average carries per game (20th-ranked in the NFL) to be a relevant start this week. And maybe Andy Reid will scheme up a play that suits his strengths in the red zone.MORE: Below is a look at the pecking order among Kansas City's top running backs for Sunday's game against the 49ers.RankPlayer1Isiah Pacheco2Clyde Edwards-Helaire3Jerick McKinnonNone of the Chiefs' Ignas Brazdeikis Jersey running backs has played more than 44.25 percent of the snaps this year (Edwards-Helaire). With Pacheco moving into a starting role, one would expect an even, committee-type approach among the three backs, depending on the game script.If the Chiefs are trailing, Edwards-Helaire and McKinnon may see more snaps thanks to their skills as pa s-catchers. If they lead, Pacheco and Edwards-Helaire will get more of the work.