play it as you will, Wlad only signed to fight Chisora because Haye didn't want anything to do with either Klitschkos and chose to fight Audley, he had to pull out due to an injury and is making good to Chisora by rescheduling the fight and giving him a shot, IMO it doesn't matter who he fights either guy beats him, be it Wlad or Vitali, i wouldn't be shocked if Haye's next opponent ends up being a Klitschko left over or someone like Toney

as for Wlad being scared, you don't basically knock out everyone in your division and clean it out by being scared