Football perhaps has the most moving parts of any team sport. Areas of concern can become team strengths overnight.
When the Eagles made the decision to part with Brian Westbrook, many believed the running back position would take a step back. Nothing turned out to be further from the truth; LeSean McCoy thrived when given the reins to the running game.
Which positions on the Eagles' roster are areas of concern? And which of these are legitimate ones? Here are four offseason question marks, whether fact or fiction.