Bottleneck
The biggest constraint limiting growth right now. The growth team finds the bottleneck, solves it using the process, and then moves on to the next one.
Definition
The biggest constraint limiting growth right now. The growth team finds the bottleneck, solves it using the process, and then moves on to the next one.
More context
A bottleneck is the single most limiting constraint in the growth system at this moment. Improving non-bottlenecks creates activity but not results; improving the bottleneck changes outcomes.
Why it matters
Bottleneck thinking prevents scattered prioritization and turns growth work into sequential problem solving.
How to use it
Use AAARRR (or another lifecycle model), pick the stage with the biggest constraint, define a KPI for it, then run the four-phase cycle.
Common pitfalls
Trying to “fix everything” at once, or choosing a bottleneck based on opinion rather than data + learning.
Related terms
- AAARRR — A customer lifecycle model (also called “pirate metrics”): Awareness, Acquisition, Activation, Revenue, Retention, Referral. Used to find bottlenecks and choose what to improve next.
- KPI (Key Performance Indicator) — A measurable number used to guide decisions and evaluate progress. The first step in the process is choosing a KPI that can be measured periodically.
- Prioritization — The phase where you select what to test next based on likelihood of success, resource intensity (time/money), and scalability.
- Analysis — The first phase of the four-phase process: analyze the current situation and/or learnings from the previous cycle before forming hypotheses.