Siddle became a victim of the Australian selectors' changing policy, focusing more on outright pace than consistent line and length, resulting in him being dropped from the team when he started to lose some of his bowling speed in early 2014. Siddle had lost weight over the last two years, making it difficult for him to bowl as fast as he had previously, so when Australian coach Darren Lehmann emphasized the importance of him bowling at speeds of around 140 kmph, he worked hard to rebuild his frame and improve his pace. There were again critics who blamed his weight loss and slower bowling on his diet, but Siddle blamed it on the fatigue associated with bowling regularly for long periods of time. No longer a regular part of the Test team, Siddle lost his contract with Cricket Australia in early 2015.