Well lets break it down. Alexander has been hurting. He will get you some yrds but not much points unless he can get you a TD. Addai, who will be back I assure you will dominate once again. Addai is a way better RB the Alexander THIS YR.
Now Depending on how Pennington does, Cotchery is solid,but inconsistant.He can get you good points are hardly any. Engram will help you with good points but only one more week after this. With Deion branch gone, Engram should be more helpful. Otherwise Engram is like a 3rd reciever to branch & Burress. Cotchery is the #2 reciever.
Deangelo is nothing, he wont get you any good points this year (unless Foster gets hurt). What you see is what you get in the last few weeks. Chad Johnson now regardless of his last 2 game struggles is one of the best.
So to me it breaks down like this. Addai Cotchery
For Alexander Johnson Engram.
Remember Deangelo is not even in the trade so to speak because he should be benched always. Remember Engram & Alexander are both 8 week byes. Make sure your safe if you decide to make the trade. Make sure you can make the trade, RB's are important to winning in the league.