4. Rashee Rice
At this point, there aren't many options for the Chiefs at wide receiver. MVS and Skyy Moore aren't reliable, Justin Watson is just a solid depth player, Kadarius Toney doesn't seem to be trusted enough for a heavy workload, and Richie James is just a gadget player. Rashee Rice is clearly the best wide receiver on this team. Even though he's just a rookie, he needs to have a strong a game.
Given their injuries on defense, the Bills don't play a lot of man coverage, which is a recipe for success for Rashee Rice. He's one of the best receivers in the NFL versus zone coverage, not just among rookies. He had productive games against the Chargers and Packers, who both also like to utilize zone schemes.
If the Chiefs are going to win this game, their passing game has to come ready to play. We know Travis Kelce is great, but he can't be the only productive pass-catcher for Patrick Mahomes. The offense needs 1-2 more guys to step up and Rashee Rice is the most likely option to do so. If he can get open consistently for Mahomes, that will make it a lot easier for Kansas City to move the ball.