AK47 is sharing the frontcourt with Okur and Boozer so his stats will suffer a little. He's also very injury prone. AK47 and Josh Smith are very similar players, both are all around and get a lot of blocks. I'd keep Smith over AK47 because he can tear it up like he did last year.
Bad trade on the account that AK47 has a good surrounding cast now that everyone is healthy so his stats will go down and he is injury prown and Mo Pete is to hot cold IMO. But then you have Josh Smith that is equivelant to Andrei and you have Lamar Odom who is doing great off the start this year. Don't do the trade.