Yes, one week doesn't define an entire season, but while we shouldn't overreact to a rough start to the season, that doesn't mean we shouldn't react to it.

Each year there are top players who are drafted to be the anchors of your fantasy football team but who end up busting due to injury, ineffectiveness, or lack of talent. In 2015, there were players like Jeremy Hill, Fat Eddie Lacy, Randall Cobb and DeMarco Murray.

And with Week 1 of the 2016 season officially in the books, warning signs are emerging that some of the players we drafted early may not be nearly as good as we anticipated. Understanding these signs and reacting appropriately can help owners develop contingency plans or trade possibilities to ideally avoid disaster.

So let's take a look at five stars who really struggled in Week 1 and evaluate how owners should approach each situation.