Where are the opportunities

We keep hearing there lies tremendous opportunities in various domains like International taxation, Transfer Pricing, IFRS etc, but bulk of them get shared by people working in Big 4 or other large audit firms or established firms. Where lies the opportunities for young members, when sharks in the oceans already encroach every available space. It may be philosophical to make statements , one must beat the system in order to survive. But the moot point is, where is the fair play?