What are the core pillars of revenue optimization? (acquisition, retention, expansion, pricing)

Acquisition brings new customers through targeted marketing and competitive pricing. Retention keeps existing customers happy and engaged, and also reduces churn and increases lifetime value. Expansion grows revenue from current customers through upselling, cross-selling, or usage-based pricing. Pricing ensures you're capturing appropriate value at every stage. These pillars are interconnected: aggressive acquisition pricing might hurt retention, while premium pricing could limit expansion opportunities. You have to find the right balance for your business model. Companies that excel at all four pillars create compounding growth effects that are hard for competitors to match.