It appears Jack was selected for his expertise in "line outs"
Assistant Coach, Charlie Garnier has recently snubbed media reports that his short stature may interfere with his ability to bring home the World Cup saying: "Abaaaa baaaa daaaaa daaaa baaaaah". Well said Charlie! (pictured above and clearly demonstrating that being short is no obstacle)
While Jack talks, Charlie smiles... that's how these two roll!
After instructing the on field trainers via phone, Jack & Charlie follow through!
And the man who started it all "Papa Garnier". Pictured with Peter Harding, the Wallabies trainer, Papa Garnier AKA Laurent/Loz knows Peter from way back when Peter trained his team in France!!! Jack & Charlie decided to keep Peter on due to his links with their papa!