You will have to use more expressions. That's the curse of the thing: OInce you start messing around with such tools, you're tied to using more expressions all the way. Anyway, if possible, pre-composing might avoid some of that. Otherwise you'll have to provide screenshots and full details so people can advise. Also simply consider a different workflow using otehr tools and effects.
I am not sure I am understanding what you want to do correctly, but you might want to look at some of the reverse motion tracking techniques used by Video CoPilot here : http://www.videocopilot.net/tutorials/demon_face_warp/
I use this a lot, as I add mouths to my characters in post, and they are moving quite a lot (the characters, that is..) - with this technique, the mouth follows the face pretty well.
Hope thats helpful,
So I played around with it a bit more and I got it to work exactly like I wanted. I left the head on a seperate layer instead of combining it to the head and neck layer and then I parented the head to the first bone, the bone in the neck. Now when the neck bobs down the face moves down with it. So if I wanted my character to eat grass I can move the controler down and now the head will face down along with it.
Anyways thanks for the responses.