His successor; DemonicRat Jennifer Granholm, served from 2003 thru 2010, and "drove" the state into the ground financially during that time. Even though most of her term happened during a strong national economy she still managed to bankrupt the state.
In this example the Gov. was forced from office not by the will of the people and their vote, but by mandate. And the people were forced to choose between 2 candidates they may not necessarily have supported had Engler not been term limited.
Term limits; like taxes, manipulate and change behavior, forcing people to do things they might not otherwise do without the restriction.