By James Toney Asha Philip believes her former Team GB colleague Dina Asher Smith’s new approach could be decisive in this weekend’s Olympic 100m final. Asher-Smith begins her campaign at their Stade de France on Friday having amicably split with long-time coach John Blackie to join Edrick Floreal’s training group in Texas this year. Philip, who is commentating for Discovery+ in Paris, joined forces with Asher-Smith to win 4x100m bronze in Rio and Tokyo but missed out on selection for Team GB in Paris. “She’s got a fantastic group around her now,” said Philip. “Her training partners are amazin…