Correct me if I'm wrong (and I might be):
If GT beats VT and if VT otherwise wins out and Miami wins out, the records would be:
GT: 11-1 (7-1 ACC, 4-1 Div.)
UM: 11-1 (7-1 ACC, 4-1 Div.)
VT: 10-2 (7-1 ACC, 4-1 Div.)
Va Tech would get eliminated by the overall record prong (Rule #4 of the 3-way tiebreaker) and then it would be a simple two-way tiebreaker between the Canes and us; thus Miami would win since they beat us head-to-head. BCS rankings in this scenario would not come into play, as they are the last resort of the 3-way tiebreaker before drawing names out of a hat. (No really, "chosen by a draw"
is the last resort; #8 in the official ACC 3-way tiebreaker rules.)
Alter the above by giving Miami an OOC loss, and we would win outright on the overall record prong.
Go Sooners?
(Here's the link to the tiebreaker rules:
http://www.theacc.com/sports/m-footbl/fbtiebreaker.html)