With the Bounties scandal still reverberating around the NFL (and no, I am not going to use any word ending in Gate to describe it, that is utterly childishly non-inventive), Profootball Talk is pointing out the relationship between the bounty system apparently employed by the New Orleans Saints and the often-abused injury reporting system operated by the NFL.
The NFL injury reporting system is a game of charades. Originally introduced with the laudable aim of preventing inside information about team injuries from being used for nefarious purposes, the system is routinely abused by all NFL teams. Most commonly, teams obfuscate about injuries, to avoid giving opponents any information that they can use (like, for example, going after specific players known to be carrying injuries, which is where the bounty scandal comes into play...). Some teams may even create injuries in an attempt to deceive upcoming opponents.
Profootball Talk tries to suggest changes to the NFL injury reporting system to make it less useless than it currently is. However, this is all a band-aid that covers up the current underlying issue. Right now players try to play while injured, and teams often let them. That being the case, the only change likely to have long term success is for teams to stop allowing injured players on the field.
Until (and unless) players are fully fit when taking the field of play, any opponent that knows about injuries can be expected to target an injured player.
Making this change will be difficult and will take time, given the current macho culture of the game. It will require two changes:
1. Teams will have to prevent injured players from playing (which they should, in many cases, have been doing all along e.g. concussions)
2. The NFL will have to be prepared to penalize times who are found to have played injured players, by applying draconian penalties to any violations (as in, loss of game points, draft picks etc.).

(1) is going to require teams to monitor player health more closely, and to refuse to allow players carrying significant injuries that can be aggravated or compounded by further wear and tear or contact to suit up for games.
(2) is going to require NFL leadership to grow a spine
Proper implementation will probably require changes to the CBA to broaden the scope of Injured Reserve or create a new Injured list to allow players with less severe injuries to be temporarily assigned to the Injured list during the season. If that is not done, clubs will start releasing run-of-the-mill players with injury settlements if they are forced to wait until they are fully fit, and try to put important players on injured reserve.
IMHO, tinkering with the injury reporting system is just that - tinkering. It will merely paper over the cracks until a player suffers a catastrophic injury caused by them already being injured and not fully recovered, at which point the shit will hit the fan, all hell will break loose, and, as is normally the case, a collection of not-very-smart decisions are made in a hurry.
UPDATE - I am aware that a properly organized campaign to reduce injuries in a collision sport also needs to take into account the laws of physics. One area where the NFL has changed dramatically in the last 20 years is player size and strength. When William "Refrigerator" Perry first appeared in the NFL, people were aghast at his sheer size and power, but today players of his size are common. The increase in both size and speed has increased the kinetic energy of collisions dramatically, increasing the chances that eventually a serious injury (as in, player is not going to function fully again, ever) or a death will eventually occur in a game. The NFL needs to be considering how to address that other fundamental issue. My personal opinion is that they may need to introduce an upper weight limit for players at various positions. Nearly every heavyweight player in the NFL "eats up" to that weight, so a weight limit of (say) 300 pounds would probably be workable. Without it, I live in fear that one day we will have to watch endless replays of a player leaving the field having suffering life-changing or life-terminating injuries in a collision.