It’s rare that any team at this time of year is able to make a roster addition that actually ends up making much of an impact on their season. For one thing, the trade deadline has long since past, so one cannot acquire players that way. For another, most any other player with much talent—at least proven talent—is already employed.
The Pittsburgh Steelers seem to be relatively pleased with two recent additions that they were able to make from the practice squads of other teams, however, those being second-year wide receiver Deon Cain, plucked from the Indianapolis Colts, and running back/kick returner Kerrith Whyte, a rookie who was with the Chicago Bears.