Harsh, but true.
Another thing that people forget around here is that having Luke is actually a luxury.
Yes he was a liability on defense last year, but he was playing on a bum ankle on top of the fact that he is just not on the nba level athletically. But his play making ability is right up on top with the best of them, and he has a decent post game as well as a decent shooting touch. If he is to come back truly healthy, Luke Walton will be the league's BEST 4th string small forward.
Remember that before Luke, there is Odom-Ariza-Radmanovic. Maybe even Kobe before Luke. The rotation on this team is extremely deep and versatile. There are few core players such as Kobe-Odom-Gasol who can play MULTIPLE positions. There really is no need for guys like Luke and Mihm and all of them as long as we are injury free and the guys stay out of foul trouble.
What you want is a tight 9-man rotation anyway by the time we get close to the playoff season. And trust me, Luke is not on that list.
The coaching staff will slide people around the SF-PF-C position to make it work without using more than 9-10 players a game. Besides, who knows Sun Yue and Powell might actually be serviceable...
But of course all of this is obviously a pipe dream... we all know Phil's got a huge boner for Puke. *sigh*