Fantasy football analyst names Seahawks RB, TE among NFL's biggest preseason fallers

While there is cause for concern about Walker's role, as far as we know he is still in line to be the starting running back and carry the heaviest workload. Even if head coach Mike Macdonald plans to supplant him with Charbonnet as the new RB1, he's not going to let us know until the first snap his offense takes against the San Francisco 49ers one week from today.

Walker is far from the only unknown commodity in this offense, though. Rotoballer also has rookie tight end Elijah Arroyo on their biggest fallers list.

Rotoballer on Elijah Arroyo

"The Seattle rookie is an excellent prospect. Currently, however, his spot contributions may not be enough to project a productive rookie season. Currently, Arroyo will have to compete alongside breakout wide receiver Jaxon Smith-Njigba and veteran Cooper Kupp for targets. Additionally, the Seahawks are expected to adopt a run-heavy approach, which could further limit Arroyo’s production in Year 1."

There's even more cause for concern in this case. In addition to having to share targets with a deep wide receiver room and a backfield that will likely heavily be involved in Klint Kubiak's passing game, Arroyo won't even be the starter. We had hoped he might ascend to the top of the depth chart after Noah Fant was released, but for now he's the No. 2 option behind AJ Barner. The Seahawks also appear to be pretty serious about using fullbacks often, as they've rostered two of them.

So, even though Seattle is probably going to use a lot of 12 peronnel, Arroyo is unlikely to see a ton of playing time as a rookie, at least outside of an injury to Barner.

For fantasy players, it might be best to wait a week or two and see what the target distribution and backfield workload looks like before making any major decisions on these two. Even if neither Walker nor Arroyo are major contributors there's plenty of sleeper candidates to choose from, especially rookie wide receiver Tory Horton.