I color coded the end results by favorable (yellow), neutral (orange), and negative (pink). I guess a missed field goal is kind of a negative but I just put it into the neutral since we didn't score, we didn't give up terrible field position, and we at least had a shot at a scoring drive. I like this chart because it really shows that good field position results in positive outcomes. There is a ten yard starting field position difference between favorable and unfavorable. Pretty interesting. The next chart I've come up with is broken down by percentages. The starting field position for each drive is on the x-axis (in distance from opponents' end zone) while percent of the drives at that distance are on the y-axis:
Other accounts for drives that end the half or game. Score attempt % includes missed field goals, made FG's, and touchdowns. T/O % includes fumbles, interceptions, and turnovers on downs. Punt % is obviously punts. I guess it's kinda scary that nothing positive has ever really come from a GT drive starting inside the shadow of our own goal post.