The fastest way to generate more customers is, often, to improve your sales flow. When you study sales flows you are usually astonished at how difficult it is for people to become customers.
Conventional managers think the fastest way to improve sales is to spend money on marketing. If your customer acquisition processes make it hard for people to become customers, this just ensures more people talk about how difficult you are to deal with.
Conventional managers also think the fastest way to get more customers is to incentivise the front line to sell. That always leads to fewer sales.