Drake or Lacy or What I've Got

Do I pick up Kenyan Drake or Eddie Lacy off waivers ?

Or…

Stick with Kareem Hunt, Jay Ajayi, Alex Collins, Marlon Mack, Orleans Darkwa and Dion Lewis?

I think the only 3 that are up for drop consideration are Lewis, Mack or Darkwa. Are Lacy or Drake better than any of those three?