5 Tier 1 KPIs drive the monthly marketing review. Each is either an aggregate rollup that captures a whole domain in one number (Ads Revenue, Email Revenue, Blended ROAS) or a single metric consequential enough on its own to drive decisions (Trade Revenue, New Trade Customers). There's no hard cap on Tier 1 count — owner judgment decides what the team actually steers by. The real limit is attention: if the set can't be walked through in 10 minutes with real context, it's too big.
Tier 2 KPIs do one of two jobs — they either explain a Tier 1 movement after it happens (diagnostic) or signal a future Tier 1 movement before it shows up (pipeline).
Report everything, discuss selectively. Every Tier 2 is pulled monthly alongside its Tier 1 — automated wherever possible — and sits right there on the review page. Hannah walks through the Tier 1s in the meeting and highlights whichever Tier 2s are worth the room's attention: ones that explain a Tier 1 shift, or ones that are sliding on their own. What to call out is her judgment, not a rule. The time-consuming part isn't gathering numbers; it's deciding what to do when they move.
These don't drill cleanly into any single Tier 1 — they're cross-cutting signals for overall pipeline, brand awareness, and website health. Reported monthly alongside the Tier 1s; highlighted in the review when something moves.