Question: In Episode II, one of the Kaminoans said that the clones are designed to be obedient, so how could Slick betray the Jedi?
Answer: With so many clones being produced, there could definitely be the occasional one who is not up to standards. He may have been "flawed" in that way.
Answer: Nobody said to whom they were designed to be obedient.
papajim
Sorry if I misunderstood, but you seem to be saying that they've been designed to obey anybody. I doubt it. If anyone could tell them what to do, Dooku would have controlled the whole army by now.