Sunk Cost Fallacy ruins businesses every year.
There is difference in what you world like to do and what is right in the current moment. If one of the guys on campus are capable of seamlessly running the offense and understanding defenses, so be it. If not, you get the best QB you can on a 1 year rental. GMac and Faizon have plenty of eligibility left. Extremely short-sighted viewpoint. We're talking about a guy leaving for not starting as a RS Freshman.
I can only imagine how much this conversation changes if we played GMac and lost to Florida.