central air overkill

When it's warm to hot outside (70 and above), I have to bring sweaters and jackets with me to work and have a little heater on beside my desk. When it's "cold" outside (anything under 70), it's so hot in the office, I should be wearing tank tops and mini skirts. The idea of central air is to keep the building one comfortable temperature throughout the year, not just to make inside the opposite of whatever it is outside. Wish I had control of the thermostat. [Cut to me, pouting and sweating, with my sleeves and pant legs rolled up, my hair in a haphazard ponytail, and my shoes kicked off because the heat makes my feet swell, and they don't fit me right now.]