With NFL training camp season upon us, Jeremy Bergman provides a refresher on the New York Giants' roster changes, position battles and notable subplots.

Giant fans know Betts well as a former opponent. He carried the ball as a running back for the Washington Redskins from 2002-2009. He comes to the Giants after four seasons running the backfield for head coach Kirk Ferentz at his alma mater, Iowa.

The most productive WR last year for the Patriots was DeMario Douglas, who caught 66 passes for 621 yards and three touchdowns working primarily out of the slot. He was followed by Kayshon Boutte, who caught 43 passes for 589 yards and three touchdowns and Kendrick Bourne, who added another 28 receptions for 305 yards and a score.