Haren or Vargas

After watching my team ERA skyrocket due to the self inposed implosion by Vargas, I am thinking of drop kicking him in favor of Haren. Any thoughts on either of these guys?
An Iconic Fantasy Baseball Community
https://www.fantasybaseballcafe.com/forums/
https://www.fantasybaseballcafe.com/forums/viewtopic.php?f=7&t=20779