Bringing Holly, who eventually became Michael’s wife, onto The Office was exactly what Michael needed to find perfect balance, much like how Bruce Banner found perfect balance by combining his intellect with his hulking alter ego.
Whenever Michael’s sworn enemy Toby Flenderson (Paul Lieberstein) ran HR, Michael was always through the roof over him trying “ruin his fun,” but whenever Holly Flax (Amy Ryan) took over, she brought out a lighter, more relaxed side of Michael.