Would you drop/trade Joe Johnson and pick up Marvin Williams?

Hey guys, quick question. so i have joe johnson, joe smith on my current roster but i see that marvin williams is playing really good so far. i was wondering should i drop joe johnson and pick up williams? or would it be better to trade johnson and then sign williams and drop someone else? cuz i dont want to have 3 atlanta players on my team cuz that just eats into everyone's production. So what do you think? Thanks for your help! :D