That would be a great fight for him to have next and I'd like to see this before he would go against WALD.
That would be an interesting fight (Adamek/Arreola winner) I'd actually rather see him take on Vitali as I think with more work he has more of a chance to beat him and that could bring an even bigger unification. I also think Wlad is mentally weaker, so if Haye beats his older brother that might make him weary and give Haye some sort of psychological advantage.
I think we're still yet to see the best of Haye at heavy. His first fight against Barrett came after an 8 month lay off, and he was over-eager to impress. He then waited nearly a year before fighting again, and put in a negative - albeit very good from a tactical point of view - performance against Valuev (broken hand didn't help matters), and this time the lack of sparring definitely affected his timing and reflexes. In general he's been quite inactive these past 2 years, whereas previously he has always fought pretty regularly and that is likely to have taken the edge of his sharpness to some extent. Given that i felt he still looked very good for most of the fight last night, i think the fact there is probably more to come from him can only be a good thing. I think if he puts it alogether he has a chance against both Klits. I really don't think Wlad can take his power if Haye is able to land early (though Wlad also has the power to stop Haye, i just doubt he has the balls to throw power punches early in the fight), and i think Haye has the speed to box rings around the current version of Vitali and possibly test the old man's stamina later in the fight. I still think the Klits are favourites, but Haye is about as live an underdog as you're going to find at heavy right now.
He still has his speed though, so I don't think he has put too much weight on. When that goes, then you would have a point, but I think the difficulties he showed are probably more to do with the lack of sparring, than his weight. For a 6'3" heavyweight, I think anything from 220-230lbs is fine.
I don't think it has anything to do with his bulk. He knows what's comfortable for him, and if he doesn't he'll make the necessary changes. That's not the problem. The problem is his style. He makes a lot of amateur mistakes that a guy in his position and especially with his POTENTIAL shouldn't be making. The way his feet come together, the way he leans back and away from punches, the way he doesn't do things like jabbing to his opponents body that a guy with his athleticism should be doing. Which is another thing, he head hunts too much, and he's a little quick on the trigger. But it's hard to really judge him on this fight because he almost had Ruiz out in one round, and I think that made him trigger happy. But honestly, he needs to start looking more like James Toney or if not him, Joe Louis, and less like who he is right now.