I'm curious whether big companies like Google or Facebook have a standard project management process or software used by all teams. I work at Mozilla and every

I'm curious whether big companies like Google or Facebook have a standard project management process or software used by all teams. I work at Mozilla and every team is doing their own thing, which can make collaboration difficult. We have Bugzilla bugs, GitHub issues, wikis, Mana (Confluence's wiki), Google Docs and spreadsheets, Trello, Smartsheets, Aha, and JIRA. Even when people agree there is a problem, no team wants to be the one to change their process.. :)