After all, most referrals come when you build up your reputation amongst the expatriate community and if you don't make a name by being hard working and taking up numerous cases, you don't get known by the expatriates. Dreams of landing the big fish are just dreams if you pick and choose when you start your career. You need to do your leg work and gain the experience. In any case, the big-time will come when you have the experience and the network. But it will take more than one or two years of commitment.
Small cases add up to the same revenue as one big case and it is more reliable to do small cases.
You have not put all your eggs in one basket. It does not mean that you will be good with big bungalow plus pool cases as you have not networked enough to give what the customer wants.