The NFL season is still young, but most fantasy football leagues are reaching the quarter point this weekend. Lineup decisions are going to be critical. Here is our start/sit advice for Week 4 fantasy football. How many running backs do you have left? If you said at least two, you are probably in better shape than most fantasy owners. Injuries have taken a major hit on RBs so far in 2016, and now with bye weeks starting to come into play, it could be a tough road ahead.