Burberry’s turnaround drive, which has tapped Oscar winner Olivia Colman and Oasis frontman Liam Gallagher to champion its British heritage and classic trench coats, faces a fresh test on Monday when it unveils its latest designs at London Fashion Week. “It felt very high fashion and quite edgy, and the collections that you’re seeing now are very classic, very clear heritage designs,” said Anna Farmbrough, portfolio manager at Ninety One, which holds Burberry shares. ADVERTISEMENT“Josh has normalised the relationship between a chief executive and a creative director,” said Jeremy Smith, UK equities portfolio manager at Columbia Threadneedle in London. While Burberry’s like-for-like sales growth has been negative for the last seven quarters, the latest result was down just 1 percent year-on-year, and analysts expect sales to return to growth this quarter as the turnaround starts to bear fruit. ADVERTISEMENTBy Helen Reid, Editor: Mark PotterLearn more:Burberry to Rejoin UK Blue-Chip Benchmark After One-Year AbsenceThe luxury fashion company will rejoin the FTSE 100 Index later this month.