There are two theories on Kevin Garnett. The first is that he's getting older and will continue to decline. The second is that he'll finally be more than a full year removed from a knee injury and should show improved play from last season. Let's meet in the middle and assume Garnett will be about the same. He'll have good days and bad, good weeks and weeks where he looks broken down. He's still a better than average power forward and the key to the Celtics defense.