Chicago White Sox pitching coach Don Cooper said starter John Danks would benefit from pitching more like Mark Buehrle as he continues his rehabilitation from shoulder surgery. "He has to be economical, he has to pitch and change speeds," Cooper said. "Pitching is using command and changing speeds. John has a good changeup but we are going to have to tighten things up. Right now he is still climbing so it is about pitching, hitting locations, changing speeds. We have had guys that could do that at 95 mph. We had Buehrle that did it at 83 mph."