I have just figured it out. Saruman was in the beginning already weaker than Gandalf, but he showed forth more power whereas Gandalf was more modest. Saruman had spent much of his strength in creating the Uruk Hai when he had little to spare. Therefore he was already greatly weakened when he had his confrontation with Gandalf. Whatever role the staff played; whether it was only a tool or if Saruman had put some of his power into it; Saruman had become all but useless without it because of his weakened state. I am assuming that it was not simple to obtain a replacement staff, probably the wizard had to expend some power, which Saruman no longer had. Wow, the answer has been staring me in the face and I didn't see it till now.
This being said, there is more to discuss here than staves. What about the other points I made? Do you agree? Does anyone have anything to add?
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If you would convince a man that he does wrong, do right. Men will believe what they see.~Henry David Thoreau
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