Darius Miles: low-risk investment, or deal-breaking asshole?

Well, there had been rumors of interest on the Celtics' part for the last month or so, but yesterday it was made official:

Darius Miles signs non-guaranteed contract (boston.com)

You remember young Darius, don't you? The guy who - at the time - was the highest pick ever to come straight outta high school (espn.go.com)? The guy with so much hype that they made a documentary (imdb.com) about his first couple of seasons at the pro level? The guy who did that "fists-to-the-head-bump" thing (sportingnews.com)? The guy who went on to help Portland earn their "Jailblazers" nicknames, with stunts like getting suspended for calling his coach the n-word (usatoday.com)? The guy who hasn't played in the league for the last two seasons due to microfracture surgery (blog.oregonlive.com)? The guy who's gonna have to miss the first ten games of the upcoming season serving a drug suspension (myespn.go.com)?

Yeah, the Celtics just signed that guy.

Now, I can't begrudge Danny Ainge too much for taking a chance on this guy ... If it turns out that health issues are no longer a factor, and Darius can give the team some productive minutes off the bench, then this will be another shining example of Danny's foresight when it comes to injury (right alongside Ray Allen's gimpy ankles and Leon Powe's questionable knees).

Also, if Mr. Miles (youtube.com) can learn to thrive within a championship atmosphere and not cause problems in the lockerroom (you'd think the combined efforts of Doc Rivers and Kevin Garnett can keep the youngster in check), then this will be another gold star on Danny's resume when it comes to taking a chance on players with questionable character traits (right alongside Ricky Davis and ... y'know, never mind that last one).

So, while I can appreciate the effort to address the loss of James Posey by strengthening the bench, I can't help but wonder: is this an "ego" move on Ainge's part, to prove that he can fit any baller into his championship equation and still come out on top? Is he risking the entire team chemistry (UBUNTU, baby!) by adding one troubled 26-year-old? Do the risks outway the rewards in this case?

Or am I just getting a smidge too worked up over the whole thing? Hey, Celtics news has come to a near standstill - before this story broke the Globe's Celtics page (boston.com) hadn't been updated for weeks! - I need something to get worked up about ;)