functional levers

•Tesco must operate by using their functional areas without these areas there wouldn't be much of a business. The main functional areas are finance, human resources, marketing and Administration.

Yes, it is. It means functioning, capable of performing an action or operation.

'use' as a verb - apply, employ, exercise, exploit, harness, operate, utilize

practical, utilitarian, serviceable, hard-wearing, useful, working, operative, operational, going, prepared, ready, viable, up and running