Most of those were not gambles b/c there was nothing at risk. Greg Hardy, Pacman Jones, and Ro were nothing but upside. If they failed, we lost nothing.
What I don't like is the second round picks thats a valuable commodity we punt away far too often. The cowboys for some reason view that round as the spot to go for the homerun pick and try to outwit the league rather that just grab a solid player who can contribute day 1 and upgrade a position. Thats how we end up with Randy Gregory, Bruce Carter, and Jaylon Smith. Sean Lee worked out but he took awhile to get on the field and show his potential.