Assessing your fantasy team after the first month of the season gives you a decent sample size to determine where players stand and how values have changed from the day you drafted them to present day. However, those assessments must continue throughout the season.
Marshawn Lynch provided fantasy owners with an unexpected boost by playing the first four games as a top-10 running back. While pleasantly surprising, it didn't mean Lynch was on his way to carrying teams to fantasy championships. If you understood that, his performances in the last two games weren't overly disappointing.
Tarik Cohen and David Njoku looked like two candidates primed for breakout seasons.