NFL Prospects Greedy Williams, N'Keal Harry and Hakeem Butler explain who they play for and what drives them to be great. Subscribe to NFL Network: goo.gl/4GOLwY Check out our other channels: NFL Vault youtube.com/nflvault NFL Films youtube.com/nflfilms NFL Rush youtube.com/nflrush NFL youtube.com/nfl #NFL #NFLNetwork #Football #AmericanFootball