I am extremely concerned.
It bothers me to see KG playing C at this stage. He'll be subject to more bruising and banging - the last thing he needs, especially if we want this 2-3 year plan to work (as we need it to). In addition, in the event he does get hurt... where the hell are we going to turn?!?! We literally have no back up C at this point. An argument can obviously be made that we can get away playing small-ball in the East (bleh - watch the Nets land Dwight this week), but we will lose our only competent rebounder and any semblance of toughness as a defensive unit (the crux of our team)if he's out.
I feel strongly it's unrealistic to believe Melo will have an impact this year. So who will we turn to? I had hoped for Steamboat to return but that is seeming less likely. I do not trust anyone on the current roster can provide time at Center. I'm not excited about the prospect of a defensive liability in Krstic (seems most likely), and being out of state, I didn't get to see much of Wilcox last year. He does sound like the best and only option at this point - very scary, and again leaves us thin.
Have to add that Pietrus's impact on the defensive end (and even potentially offensively - he will know the system this year and has shown he can knock down the 3 in past years) has been drastically underappreciated by a lot of fans. He is the lone person I could see guarding Lebron and bigger SFs next year. Without him, who will we turn to? Again, I don't expect much out of Green defensively so, ultimately, we're looking at Pierce to do this? He has proven he can't do it anymore...
I want to believe we will be okay. I think we still have a shot. I pray Sully finds himself time this year and plays big. But as far as the defense goes (and the team goes with it), if we don't shore up a true Center and SF that are well-sized nd defend well, I'm afraid we are in for disappointment late in the post-season once again. I hope we are making this a priority... our fascination with Lee is worrying me for this reason.