Stack Redundancy Audit: Trimming Robinhood's AI Tool Sprawl
Objective: Given a supplied 8-tool AI marketing stack with overlapping capabilities, apply the lesson's job-to-be-done reasoning to flag genuine redundancy and recommend which tools to cut before a renewal cycle.
Robinhood's marketing ops team has accumulated 8 AI tools across content, ad copy, and reporting over three years with no single owner tracking overlap. Renewal invoices are due next month.
Given a tool list (name, function, monthly cost, last-30-day usage), map each tool to the job-to-be-done it serves, flag tools sharing a job, and recommend which to keep or cut.
Before you start
What you'll need
Free path (everything below is enough to finish)
Free, sortable, enough for an 8-row audit
The process
1 step
Step 01 of 01
The lesson's first common mistake is building or buying before defining the specific job a tool is for; two tools only overlap if they serve the same job, not just a similar category label.
Two of Robinhood's 8 tools are both labeled 'AI writing assistant.' One drafts app push notifications, the other drafts long-form blog posts. Are they redundant?
Procedure
- List all 8 tools with their stated function, monthly cost, and last-30-day usage rate.
- Add a job-to-be-done column: write the specific outcome each tool exists to produce, not its marketing category.
- Group rows sharing an identical job-to-be-done; that's the only valid redundancy signal.
- Within each group, keep the tool with higher usage and lower cost; flag the rest for cancellation.
- For any tool with under 10% last-30-day usage and no group match, flag for cancellation regardless (unused, not just redundant).
Robinhood AI stack audit (excerpt) Job: 'Draft short-form push/in-app copy' Tool A: 92% usage, $340/mo -> KEEP Tool B: 11% usage, $410/mo -> CUT (same job, lower usage, higher cost) Job: 'Draft long-form educational blog content' Tool C: 78% usage, $500/mo -> KEEP (no overlapping tool) Unused, no job match: Tool G: 4% usage, $220/mo -> CUT (unused)
Healthy
Two 'AI writing assistant' tools correctly NOT flagged as redundant once their jobs (push copy vs blog posts) are shown to differ.
Unhealthy
Cutting a tool because its category name matches another tool's, without checking whether they serve the same job.
What this means
Category labels lie; usage data and job-to-be-done together are what actually prove redundancy.
So what do I do about it?
| Symptom | Action | Effort |
|---|---|---|
| Renewal review cuts a tool based on category name alone | Add a job-to-be-done column before deciding any cut | 30 min |
Final deliverable
A stack audit memo with each of the 8 tools marked Keep or Cut, grouped by job-to-be-done, with projected monthly savings.
See a reference example
Nubank, Q2 martech renewal audit (excerpt) Job: 'Personalize in-app upsell copy by user segment' Tool X: 88% usage, $290/mo -> KEEP Tool Y: 6% usage, $310/mo -> CUT Projected monthly savings from this audit: $310
Success criteria
You're done when you can:
- Groups tools by job-to-be-done rather than category label
- Flags at least one unused tool independent of the redundancy grouping
- Produces a specific projected savings figure