Early in his career, Tim Cook called himself the "Attila the Hun of Inventory", meaning he knew how to handle a supply chain so aggressively that the firms he managed (Compaq at the time) didn't need to carry that very expensive inventory. It could be obliterated.

He has only gotten better at it since then.

Apple is supply-chain constrained today, especially around Macs. But it has managed this difficult supply-environment way, way better than most other firms.