I think you underestimate Ward's ability and Ward's own jab which is a more dangerous jab then Calzaghe who was able to outjab Kessler as you mentioned.

I don't know how you can say that Calzaghe beat Kessler because he beat him in a jabbing battle on the outside but yet ignore that the jab is one of Wards best weapons that he can throw from orthodox or southpaw.