But I think they should add some players next season... They are getting old.
Which leads me to draw comparisons to the Bulls teams of the 90s. I believe the Lakers have lost a step, as the Bulls did after 1993, and I'll predict now that LA will not win their fourth straight title. Their team is not as strong as the previous title runs, and their opponents have gained strength and confidence. It seems as though most of their Western rivals are confident, but not over confident - the Lakers are of course the defending champions (and starting to play good basketball again).
Because of this, I believe the Lakers, like the Bulls, will not yield a fourth straight championship, which will be followed up by retooling in the offseason (a la Chicago acquiring Dennis Rodman in 1995) and a better 2003/2004 season.
Even if the Lakers do win the title this season, they should probably look to make some changes. Although Chicago had success with an older roster and without making significant changes to their roster in three seasons, the question begs how many titles can you squeeze out of a team. The Celtics of the 60s would answer 11, including 8 consecutive, but that's a different team and a different era. But the answer to that question for the Lakers can wait until the offseason, especially now they are breathing down Houston's neck for the 8th spot in the West.