His succes has come from his unique style he's developed with Enzo, however it could definitely be improved upon, Hopkins exposed weaknesses in his general strategy.

Another benefit of another knowledgable trainer taking an eye at him is to set up strategy for specific opponents. Team Calzaghe claim they don't watch bugger all of the oppoennts beforehand, and after Saturday I believe them. I was watching with disbelief within 30 seconds of the first round when Hopkins was moving away and Joe couldn't reach him, he looked a little baffled then just walked forward straight into a right hand!!! I mean, what the HELL did they expect?
A little homework would have made it a much more comfortable nights work, even though Hopkins would have still made it awkward. It took Calzaghe 4 rounds to figure stuff out about Hopkins's strategy, stuff that EVERYONE else knew already. In the end it was Hopkins' date of birth that caught up with him.