Should I do this trade?

Man I had the same situation in my league. I had to much spotty talent on my roster. you never know who is going to break out that week. This way you can have Addai, who is more of a sure thing than anyone you have right now. The only thing that scares me is if Gonzalez gets back in time for fantasy playoffs and goes off.. I dont think that will happen though so I would pull the trigger