That's a great trade for Lakers but it is a financial move.
They'll save $4.6M in luxury tax and about $3.2M in salary. It's $7.8M saved at the cost of a late first round pick. Late first round pick are usually sold $3M in cash, do the math...
BB wise, Joe Smith should be at the deep end of the bench like Vujacic. I wouldn't be surprised to see Lakers adding a guard like Antonio Daniels before the playoffs because they only have 4 guards under contract.
Nets also do really well in this trade. They are a rebuilding team that got 2 first round picks without giving up a lot.
I don't get this trade for Rockets. They are just stockpiling average players without a goal and create logjams. Maybe there is a bigger picture but it seems they are lost on what they should do.