I haven't had to deal with advocacy at school or anything like that. My wife and I recently compromised on a preschool. I think it's important that my daughter be able to learn at her own pace, which I think is considerably different from the pace most 3 year old children would learn at. My wife questions the importance of learning things covered in kindergarten before going to kindergarten. One of the things I've learned from this board is to take things one year at a time. I don't intend to hold her back so she enters kindergarten appropriately ignorant. I'm not sure she'll even go to kindergarten.
At any rate, I'm the one concerned with making accommodations for my daughter (my son too, if he proves to be exceptional). I'm the one reading books and articles available online. I'm the one posting on this forum. My wife is more hands off about the intellectual interests. She is more concerned with nutrition, exercise, clothing, clean rooms, etc.
She is definitely a reliable partner once a decision has been made though. She will get on the phone, schedule things, and deal with contracts.
As always, we complement each other amazingly well.