Agile Squads work in 1-6 week cycles. Each cycle starts with a Mission briefing event and ends with a Mission debriefing event...
Doing plannings, daily standups and retrospective ceremonies does not make a company Agile. Agile is a mindshift and it's hard... many companies try to become Agile only to fail in the process and get no results...
The liberating Agile framework for mature software teams