My sense is that he does not have the goods. I don't even think that he is even fit for Admin Service. Very different from the brother who was easy going but you could see substance. RL is very organised, very templated but not sure what he wants himself. Look at his career trajectory from the start. There are many others who. more capable.
Logistics is the heart and soul of Singapore and Singapore's success and it has to be done military logistics style for efficiency, environmental load as well as production efficiency. If he cannot do the job, replace him or get someone to proxy him. It is only because of the importance of logistics that the Land Acquisition Act is tolerated by people like me. Virtual logistics is rubbish without physical logistics and Singapore is appreciated for its nodal importance for physical logistics, within and without the island. MCYS might be much better for him or MP with no Portfolio.