Let's think about this. If KG is traded for, the general idea seems to be that we will give up Brad Miller, Kenny Thomas, our pick, plus Bonzi or Bibby. That means we have a team of Artest, Kevin Martin, Cisco Garcia, Shareef Abdur-Rahim, Kevin Garnett, plus either Bibby or Bonzi AND one or two players from Minnesota that they will need to send over to make the salaries match (probably 2 players out of Jaric/Hudson/Hassel/Davis).
The team would lack depth, certainly. But that team has to be a force in the west. Think about the depth like this:
Artest/Garnett (as good top 2 players as any team except maybe Detroit or SA)
(Bonzi/Bibby)/Abdur-Rahim/Martin: Kings fans love Kev, we know how good both Mike and Bonzi are, and Reef might become very very good given more minutes (minus KT/Brad) playing alongside Garnett and Artest. Hell, anyone would look good next to those 2- and let's not forget that SAR is no scrub
...after that the team gets thin. Cisco, Minny's scrubs, Hart, Corliss, maybe the MLE? But honestly, do we care that much? Teams win on the strength of their greatest players. The bench can sustain a team over a long season, bail a team out if they have an off night, but not make a good team a contender. Having 2 superstars, however, would make a team a contender. Also, adding Garnett makes the value of our MLE go up significantly. Who wouldn't want to come to a team that just got a new superstar and a new coach and looking for a new identity- sounds like a good place for any vet to come in and try to win a ring, but actually helping create a team in the process.
bottom line: you'd be nuts to not trade away any combination of players not named artest to get garnett. if it is Bibby, console yourself by knowing that Bonzi/Artest/Garnett will form one of the nastiest cores in the league