With the All Blacks heading into Ellis Park to face an unbeaten Springbok side, this profile digs into the personality and philosophy that has shaped Dave Rennie's coaching career. Drawing on Ryan Wilson's first-hand account of Rennie's Glasgow Warriors tenure, the piece builds a portrait of a coach who is emphatically not the archetype — a former PE teacher and pub landlord who opened his first Warriors training session by asking players to learn a Fijian hymn, on the basis that anyone willing to belt it out in public won't fear making mistakes on a rugby field. Wilson's testimony is telling: Rennie's 95/5 rule — that 95% of leadership happens off the field — wasn't just rhetoric. Rennie's ability to completely compartmentalise match results, guitar in hand after a loss as freely as after a win, is framed as a genuine competitive advantage in managing player psychology.