I moved from dev to technical program/project management at Mozilla. Given the organization's open source projects and bottom-up hacker culture, we have no unif

I moved from dev to technical program/project management at Mozilla. Given the organization's open source projects and bottom-up hacker culture, we have no unified project management process or tools. We have Bugzilla, GitHub, wikis (public and private for security sensitive work), Etherpad, Trello, Jira, Confluence (Atlassian's wiki product), Google Docs and Spreadsheets, Smartsheet, and other tools. Every team users different subsets of tools. Choice is good but can make collaboration between teams or at a higher program level more challenging. I'm curious whether Google or Facebook have standard project manager processes and tools internally. I know Facebook users Phabricator, but they also user GitHub.