First impressions can be lasting. For an NFL rookie, they can set the tone regarding the player's attitude, approach and work ethic.
Before anyone brings their jump-to-conclusions mat out of storage, though, this year's rookie class is still in its infancy, and its potential is yet to be tapped. However, plenty can still be learned even during a handful of non-padded practices. Coaches finally get to size up their new draft-day gifts.
A player's potential impact within the lineup, where he fits on the roster, his future usage and how he'll transition to the NFL can all be gleaned from these initial workouts.