Ewen "Link" McKenzie unlocked the secret to Quade Cooper long ago and is again reaping rich rewards as the Wallaby playmaker prepares for his 50th rugby test this weekend.
Just 14 months after his career hung by a thread, Tokoroa-born Cooper, 25, will reach his half-century of international caps when he runs out against Wales at Cardiff's Millennium Stadium.
McKenzie says it's no coincidence that Cooper is playing his best test rugby since his elevation to the Australian vice-captaincy at the start of their European tour late last month.
McKenzie, who first empowered Cooper at the Reds in 2010, knew what he was getting when he shocked many by promoting him to the national team leadership role.
"I worked out early on ... the more responsibility I gave him the better he played, simple as that," he said. "He likes responsibility.