Calling Bush a bust is plain stupid. The kid is producing in his first year, and he's on the field as opposed to the bench.
If you've been watching football for more than 3 years, like some of his critics

, you'll know what real busts are.
Andre Ware, Curtis Enis, KiJana Carter, Tony Mandarich, Heath Shuler, Lawrence Phillips, etc. Those guys are true busts, and they all had tons of hype prior to them being drafted. These guys were supposedly immediate impact players, but they didn't help their team and wound up out of the NFL in a couple of years.
Bush may not be a world beater now, but like many players, he has to get adjusted to holes in the NFL which are smaller and close up faster, get adjusted to the speed of the NFL which affects the type of cuts he can make.
Bush isn't a bust because he is actually seeing the field and helping his team. 2ce is still a good RB, therefore Bush doesn't need to come in and be an every down back. He can develop and learn, while contributing. Right now, he's approaching 800 yards from scrimmage with 5 games left. Let's keep in mind that this kid barely has over 150 touches for the season. He's helped NO in the kick return game. And he's doing all this with limited play. It's better than most rookies who are every down players.
The Aints have other weapons like Colston, Brees, McAllister and Horn that they don't need to rely on Bush and toss him into the fire and make him carry the team on his shoulders. The kid looks good on the field for a rookie, and if you can't see the potential, you need to watch more of the game instead of reading stats.