The ratings seem fair, IMO.
Defensively, Rumph isn't even on the team anymore, so I'm not concerned about him. Wroten hasn't done anything to warrant a higher ranking, but as you say that could change by mid season or season's end. I think Glover is consistently overrated in Madden. I think Carriker was rated very fairly, with a nice combo of speed and strength. His awareness probably could have been higher but doing so probably would have raised his OVR too much. Hill's rating seems solid; I think he's primed for year two as the top corner on this team. I'm disappointed Bartell is listed as a FS, he's our #3 corner but will be starting with Fakhir suspended. Never good to have a starter listed as a back-up at a different position.
On offense, Bulger's rating seems accurate to me, but I'd be curious to see where he stacks up with other QBs in the league. Leonard's speed seems fine, as I think he ran around a 4.5 at the combine. A 78 for a mid to late second round RB/FB sounds fine to me. Hall really hasn't done much as a receiver so I'm not sure why he should be rated higher; his return stat is 99 anyways. Mark Setterstrom, despite playing well at the end of the year, seems a bit overrated as a 79, but he very well might earn that rating quickly in 2007. It's nice to see Witherspoon well represented in the middle, but I'm hoping to add another LB to the roster so Draft (whom I believe is underrated @ a 78) can be shifted elsewhere.