Diaz has 0.2 WAR and he can't hit as is. He's put up 0.2 fWAR. His defense is excellent and at SS. He might turn into an okay bench piece considering his talent at SS. So yeah he's probably s*** but I don't know if I'd take the same action I would with Sierra (demoting to the fiery depths of hell) just yet.
Excel game strong, google game stronger:
http://www.thehockeynews.com/listings/47-Keeper-League-Player-Rankings.html
http://hockey.dobbersports.com/index.php/columnistsarticles-mainmenu-77/26-rankings/105-top-300-players
But the wins that we lose from some garbage reliever over Loup could be harmful. Maybe.
I'd really rather just package some relievers in a deal for a bench piece or something, a la the Frieri/Amarista deal a while ago.