Sproles consistently gets involved in the passing game. Even in a tough matchup, he's likely to get 4-6 receptions, which gives him a solid floor of 8-12 PPR points. That's valuable in a flex spot. Prosise is talented, but his usage is far more volatile. He's heavily reliant on carries, and with Rawls back, those carries are going to be significantly reduced. He's also more prone to getting completely shut down if the Seahawks fall behind. You're spot on about Rawls not immediately taking over. He's coming off a significant injury. Expect a gradual re-introduction. However, that *does* eat into Prosise's potential volume.