It was not a coincidence that Darby played on the left side. That was where he played during his first two NFL seasons, with Stephon Gilmore playing on the right. Schwartz wanted to put Darby where he was comfortable. As Darby learns the Eagles' defense, Schwartz said they will move him between the right side and left side in practice. The benefit of doing so is that if the Eagles wanted Darby to shadow an opposing team's top receiver during games, he's able to play on both sides. Schwartz indicated that Darby is best as an outside cornerback, so don't look for him to play in the slot.