Brook was very good for the first half of the fight, almost sublime. I seriously think that even against better opposition he may look equally as dominant. The problem seems to be two fold, he hasn't been able to stop people as he has stepped up in level and his stamina is questionable. He can improve his conditioning so as not to fade as much but even if he sits down more on his shots instead of always throwing combinations he may not have the power to stop people at this level. He needs to get stronger too as Jones threw him around a bit too easily, but I can still see him winning the IBF title against Bailey or Alexander. Jones is one dimensional but tough. Good fight