First, the fact that he says he has no experience in anti-trust makes me wonder, WTF was he doing being placed in that position? Why not give the monitoring job to the guy he's hiring to actually DO HIS JOB.
Second, the guy has one area of authority. The Anti-trust behavior regarding the ebooks. The judge admitted that neither MFN nor agency model are inherently restraint of trade, so he can't use the idea of "but you use the agency model elsewhere" to expand his authority. John Ivy is involved in the design of the hardware and, most recently, the software. He has NOTHING to do with the agreements reached with content providers or suppliers or retailers or anyone.
Third, according to another article, not only is this guy insisting on interviewing top management at his leisure, he's insisting on interviewing them without any of Apple's lawyers present. Damn straight Tim Cook doesn't want an interview under those terms, he's got an IQ over 50 and he knows that's insane. This guy is also insisting on the ability to report to the judge without any representatives from Apple being present.