Right off the top of my head:
1) Hiring Garrett before Wade was announced as HC.
2) Wade getting a lowball offer.
3) Jerry hiring Dat.
4) Sparano expressing some discomfort in being "demoted". Parcells would have never allowed that to become public.
5) Well, I KNOW I had another one there a minute ago, I'll get back to you.
None of those is PROOF.
Individually, you can say each one is a little bit of evidence.
As a group, you can say it is a good bit of evidence that Wade has less authority than Parcells. Nothing overwhelming, but combine that with jerry's past, and with jerry's own words about the subject and it is plain to me that Wade will be operating on a leash, not a puppet, but restricted in what he can do without Jerry's okay, much more than Bill.