The first reaction for most fantasy football players is to tear apart their roster prior to Week 2 if they didn't have a winning effort in the opening week of the season.
That instinct needs to be ignored in most cases. Many players walked out of their fantasy draft thinking they could have done better, and those feelings get hammered home if they struggled in the first week of the season. However, it often takes two, three or four games to get a better feel for the roster.
We preach patience in most cases, but not all.