He is 14-10 in games he has started, regardless of whether he finishes the game. If you cherry pick like you suggest, then the record is even better than that.
Correct, and that averages out to about 10-7. Awful? No. Better than Trubisky? Obviously. Could we win a Super Bowl with him? Not in my opinion. I know, I know.... the 49ers, the 2000 Ravens, etc. There's always going to be an anomaly.
Just my opinion, though. Others may think you can win a championship with him.