The proposed CBA approved by the owners allows for all teams to begin negotiating with restricted, unrestricted, and college free agents this Saturday. As it turns out, that 72-hour window for teams to sign their own free agents won't include "exclusive" negotiations. This change, as pointed out by Gregg Rosenthal of Pro Football Talk, will go a long way toward eliminating the NFL's perennial tampering problem. The upshot is that there's nothing stopping a team like the Broncos or Dolphins from recruiting free agent running back DeAngelo Williams as early as Saturday -- as long as the players approve the CBA on Friday. One team cannot sign another team's free agent before Wednesday, however. Source: Pro Football Talk: Twitter.com