Bringing in Nash was a great move regardless of his age. He will get the ball where it needs to go and when they pound inside he will always be ready for the ball to be kicked back out for an open perimeter shot.
Jamison a very solid signing as well as he gives them some much needed scoring (likely off the bench).
Now they are apparently pursuing Howard? I think Bynum is more skilled offensively but his time might be up with LA and it may be better for him to move on. Kobe still has a couple good years left in him so the pressure would not be on Dwight to carry the load but rather to be an anchor on defense and their main low post presence.