[Jugurtha]

Alistair Croll wrote a few books about that.

- Lean Analytics

- Complete Web Monitoring

In Lean Analytics, the "Part Two" is titled "Finding the Right Metrics for Right Now" where the author delves into analytics frameworks, then breaks it down by what kind of business you're in (models: e-commerce, SaaS, free mobile app, media site, etc...) and what stage you're in (empathy, stickiness, virality, revenue, and scale) and then how to drive these metrics.

In "Complet Web Monitoring", the author may have more answers to your question (nuts and bolts, implementation), as you may already be aware of your core metrics.