Dave clark brought this from Amazon. At Amazon they call it "STLs" or single threaded leadership. Basically you assign one director/vp/etc. to the business, and they are responsible for PnL/success.

It isn't that you do one thing at a time as an entire company, but your org is focused on one thing. For example, maybe there is a director who runs an org in charge of international freight forwarding.

I'm not really sure how things are organized at other large companies as Amazon was my only experience into mega corp work.