holy crap! I cannot even grasp the theory that you are trying to explain! Sounds like a Mr. Show skit! Sounds like...blah blah blah..slap some shiz in there...blah blah blah voila!
the other option is to buy a dry wall hole patching kit from (insert hardware store here) for about $10.
The way that Jason is explaining is the exact way I have repaired drywall, it's very simple ... it's the finishing part that can test your skills.