Teams moving toward a single source of truth do not have to replace every tool at once. The practical starting point is identifying which joins matter most — usually customer identity linked to revenue and feedback — and ensuring those records are kept in sync rather than duplicated. Integration layers, webhooks, and two-way connector syncs can bridge existing tools while a more consolidated spine is adopted over time.
The alternative pattern is a product operating system that ships the spine as its foundation, with connectors to the tools teams already use (Stripe, GitHub, Jira, Slack, Intercom, and others), so the join happens at the data layer rather than in a spreadsheet before each planning cycle.
Judge any candidate on one question: can you open a feature and see the accounts that asked for it and what they pay, without leaving the page? AIOProductOS answers yes by construction, because the feedback, the work and the revenue are one record rather than three systems kept in step. When the answer is yes, "what should we build next" is a query instead of a meeting.