A fair question - honestly I have no idea. There's hard work and humility in store for Josh if he wants to stick around, and his dummy-spit after being dropped for the Sydney game speaks to me of a wounded sense of pride. But humility and hard work is a necessity in any profession, not just football - and if Josh is mature enough to realize that then maybe he will make it.
Really I think maturity is the key word. A lot of young men go through stages of believing the sun shines out their own rectum, and they often bury their head up there in search of a bit of warmth - choosing to hide their immaturity and uncertainty about life with an inflated ego. Josh is still young and suffers the pressures of fatherhood and lofty expectation - frankly it's a nasty combo that any decent person would wrestle with.
If Josh has acquired the required maturity through discipline and denial then good on him, he should go far... But If he genuinely believes the entire world needs to start warming its hands at his inner brilliance every time he bends over to tie his shoes, well that muscled, scrawny behind of his is going to attract more swift-kicks than sun-seekers I'm afraid.
