Deron
Kobe
MWP
Humphries (with their trade exception)
Gasol
I think Bynum should go to Brooklyn, the Nets would have a decent team with Bynum, Lopez, Brooks, Wallace, Green.
They could sign Sessions since the Lakers would have Deron, Lakers could use their TPE (I think it's still in play) to sign Humphries.
Deron in their lineup would give Kobe a whole lot of rest during games, you'd always have at least 1 guy that can score/take over a game.
They would be a worse rebounding team and less shot blocking without Bynum but Deron would rejuvenate Kobe, and prolonge their championship window.
I know some people here might laugh this off and say you don't trade big for small, but Bynum has proved to be very immature and also their frontcourt isn't really intimidating anymore.
And they only have one scorer in Kobe who's like 34 years old ?
Kobe makes 30 million his last year, They could just keep Gasol and be highly competitive the last few years Kobe is playing there.