What are the 'four fits' I need before growth compounds?
The short answer
Brian Balfour's model: market-product, product-channel, channel-model, and model-market fit all have to line up. Growth feels effortless when they align and impossible when they don't, no matter how hard you push tactics. Nail the fits before you optimize campaigns.
Go deeper, your way
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Why we picked it
The most influential framework for why growth feels effortless for some companies and impossible for others; essential reading before optimizing any tactic.
Why we picked it
Based on studying 100+ consumer companies, Lenny shows that lasting growth comes from becoming world-class at one growth engine, viral, SEO, or paid, rather than dabbling in all three.