They do have people to fill roles. They just don't want to pay them what they deserve or require, because said millionaires want to make sure they keep becoming wealthier and wealthier until they have more money than they know what to do with and can live excessively lavish lives, and in absurdly disproportionate luxury.
They want to continue the obscene and sick practice of being able to do things like spend £1000+ a night in a hotel or hundreds of pounds every night on dumbass bottles of champagne.
And that is my point.. people complain about the lack of people but they want to increase their profits, when they struggle to increase their market engagement todo it so focus on cost cutting instead. The brew dog co-founder that racked up a 180K+ bar tab on whiskey in one night.