Opposition dont even have 1/3 Parliament seat better dont discuss about shadow cabinet.
In UK.USA/Japan their opposition have 40% seat or more . So they will have enough man power for shadow cabinet.
In Singapore we only have 6 opposition MPs asking them to be the head of the Minister of each department. Each of them need to take up at least 3 post.
If Singapore opposition if can manage to grab more than 1/3 of the Parliament seat them they will have enough head count.
So only 6 member. Who will be PM, DPM, Finance,Defend, Education, Health, Transport, Enviroment, Tourist, Manpower, Foreign,...................................so many more.