If you are going to compare Meyer to Tressel, the Tressel period has to be his first 3 years. (Transitions where you implement new offenses with existing personnel have an impact too.)
In Tressel's first 3 years we had 55 fumbles (19, 17, 19) and lost 29 (11, 7, 8). So we're really comparing 61 to 55 and 35 to 29. I'll take that trade-off every damn day of the millenia given production.
The moral of the story is that there are fewer mishandles and its easier to recover your mistakes when you run Dave 75% of the time than when you are trying to stretch the field both directions and option off defensive player decisions.