# Project & Program Management 1. [How Big Tech Runs Tech Projects and the Curious Absence of Scrum](https://newsletter.pragmaticengineer.com/p/project-management-in-tech) - by Gergely Orosz 2. [Product manager vs project manager vs technical program manager](https://medium.com/swlh/product-manager-vs-project-manager-vs-technical-program-manager-e45d0cf32e01) - by Julius UY 3. [Tech Lead vs Team Lead](https://www.rubick.com/engineering-manager-vs-tech-lead/) - by jade Rubick 4. [Single Threaded Owner](https://www.rubick.com/implementing-amazons-single-threaded-owner-model/), i.e., "a team focusing on a single thing at a time"- by jade Rubick --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://www.mlcompendium.com/foundation-knowledge/project-and-program-management.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.