Since it’s such a tried-and-true format, there are plenty of articles on the Team Radar, with advice and emphasis added based on the author’s position and involvement with teams. Christiaan Verwijs of The Liberators approaches the subject from a facilitation perspective with a Scrum Master-y stance in 2017’s Retrospective: Do the Team Radar, while Petra Wille’s 2019 article The Secret Weapon of Retrospectives – the Team Radar over on Mind the Product is clearly written from a product managerial perspective. Use the best of both for your team’s next (radar) retrospective.