The Seattle Seahawks have found their No. 1 back in rookie Chris Carson after watching him post 100 total yards on 21 touches against the San Francisco 49ers. But what should fantasy owners expect out of Carson, and how does he fit the offensive identity in Seattle? Let's break down what Carson brings to Pete Carroll's team and also take a look at Javorius Allen's value in Baltimore, J.J. Nelson as a must-add this week and the expected boost in volume for Carolina Panthers wide receiver Kelvin Benjamin. Here are my Week 2 fantasy takeaways.