1. Yes, Ben is old, but he is pretty reliable. I don't consider the size in the Pacific to be particularly overwhelming. Yi obviously wasn't playing center with Brook Lopez in NY, but is 7ft 250lb so I'm not concerned. He's not a bad defender and he has potential. He's improved over the summer also, putting up 25/10 in FIBA.
2. Ankle injury.
3. Define poor, it's his natural position. The season before last with the Kings he got 14 points and 6 rebounds a game while shooting 44% from behind the arc. His defense isn't great but I don't think it's really any worse than it is at the 4.
4. KG will without a doubt have a better season this year than he did last year, the question is how much better will he be. He improved throughout the season as he got further away from the injury. KG will lead the Celtics and the Clippers to the championship.
I would disagree that Yi is anything other than a bad defender.
As far as Nocioni, he's been in consistent decline in terms of his mobility, to the point where he now gets killed playing the small forward position. The "real life" Kings scored 99.1 pts/100 possessions and gave up 106.6 pts/100 when Nocioni was at SF; they scored 103.6 and gave up 105.5 when he moved over to PF. Neither is good, but his play at PF was appreciably better. (Also, SFs actually shot a higher percentage against Nocioni than PFs did, believe it or not.)
I hope you're right about KG. He looked great defensively in the first three rounds, before falling off pretty substantially against the Lakers. It's hard to admit it, but Pau pretty much dominated him.
Pau dominated him on the boards, but defensively as a whole Garnett did okay when he guarded Pau.
It was the offensive rebounds that killed us...
As a whole, Gasol scored 18.5 points per game against KG on 48% shooting. That's not a sterling defensive performance, but it's good enough to win.
However, in terms of rebounding, KG averaged 5.6 rebounds, compared to Gasol's 11.6! If you want to point to a major reason why we lost, it's because Gasol destroyed KG there. That's a very real sign that KG's athleticism has dropped off. Also, KG was essentially a non-factor in terms of blocked shots until Game 7, when he raised his series average to 1.3 blocks per night.
I just wouldn't point to KG's performance against the Lakers as a sign that he's back. KG was good-but-not-great. To reach mgent's expectations, he's going to have to elevate his game a heck of a lot more than he showed in the Finals.