Day 3 of the NFL Draft is a time where teams look to find those true value picks they are searching for. In the case of the Pittsburgh Steelers, most notably, Antonio Brown has come out of the Day 3 resume of picks. However, it does not mean they are hunting for stars like Richard Sherman or Tom Brady, but rather for good, solid players that add to the team.
If you want an example of this, think of someone like Vince Williams or Anthony Chickillo.