"It’s just so frustrating. He has a lot of pace and a beautiful run-in but he stuffs things up at the point of delivery. It should not be rocket science to teach a left-armer to bowl an inswinger," former Australian paceman Tony Dell said.
"It is an absolutely natural phenomenon practiced by Davidson, Gilmour, Dymock, Reid and Vaas, to name a few. None of them were real quick, but a late inswinger at 140km/h is impossible for a modern-day batsman to keep out.
"They all leave a foot-wide gap between bat and pad. You don’t have to be special to bowl it. I’m not sure what the coaches are doing in England. Dymock would fix him in 10 minutes," Dell said.
"The front arm and the front shoulder are so important.