Jordan Crawford is a terrible player however. So he is putting up 13 and 6 on a terrible team playing what, 35 to 40 minutes a night?
Sadly, your perception just doesn't match the reality. Crawford plays 30 minute a night (posting 14 and 6 in the process). That's on track to post 18/8 if he did indeed play 40 minutes a night -- just in case you wondered 
...Crawford is a terrible player, though. And he was a bad teammate from an objective perspective. Anyone who watched a game realized that Crawford was not in the long term plans for a competitive team. He shot more shots than everyone on the team other than Bradley and Green--that could explain for his high point totals.
He averaged the most TOs on the team, and his FG percentage had dropped to just 1 pt higher than Bayless' on the season. I think you're giving the dude too much credit. A lot of players' stats look great when spread out over 40 minutes.
On a per-minute basis, he took less shots than Bradley, Green and Sullinger. He also took just .5 shot per 36 minutes more than Courtney Lee. Pegging him as the 4-5 scoring option on the team is probably an accurate assessment.
Courtney Lee played probably less than ten minutes a game and was told to shoot at will, especially considering he was shooting from behind the arc at like a 48 percent clip.
Nowhere in what I wrote did I say Crawford was our team's first, second, third, or even fourth option on offense. I simply stated he had taken the third most shots on the team for the year. That means nothing other than he has taken the third most shots on the team for the year.
Pearljammer10 said he was a terrible player on a terrible team. He was both of those things. You telling me that in fact Sully shot more shots per minute does nothing to dissuade me from that notion. He still managed to give the ball away more than anyone on the team. And yes I know he was PG and had the ball in his hands more. He disrupted the flow of the offense and was a bad teammate.
I think your tendency to one up someone with a somewhat pertinent stat distracts attention from the larger issue at hand--Crawford wasn't good for our team.