I think him looking slower was %20 ring rust and %80 finding southpaws awkward, he doesnt let his rights go as freely and hesitates and I think that has a lot to do with Calzaghe.

As for him only throwing a jab and straight right, he has a nice uppercut that nearly took Joes head off

He did open up here a couple of times and show some speed but I think he hesitates against a southpaw that Ward naturally is, its going to be quite a competetive bout I think but if you had to pit any of these fighters with the best chance of beating Calzaghe in a comeback it would have to be Kessler.