U actually make some good suggestions here.
Wong Kang Seng and Mah Bow Tan with their vast experiences and
international standing plus their popularity with their voters make
them ideal choices for President too.
Hmm now Singaporeans are spoilt for choices for President!
Haha. They have left in disgrace, practically fired. I doubt
President is in store for them.
Li Kwan You got his MAS advisorship, Go Choke Thong got his
Emeritus. These guys got nothing, discarded after winning the
election. They have been held to account!