Hey, you "steal" some of my suggestion!!! 
Regrading the withdrawal of service 81, please read all the posts
above about the service, it just tell you why it can't be
withdrawn.
Service 62 cannot be withdrawn, in my opinion, service 62 will be
extended to Hougang Ctrl after NEL opens and it will covers the
route of to-be-withdrawn service 321. Also, service 62 serve parts
of MacPherson and Aljunied area, not served by service 80.
Service 103 need to provide a link between Jln Kayu and Upp
Serangoon Rd.
Then what about the route of service 131 between Bt Merah and
HarbourFront?
See my suggestion on how service 111 be integrated with service 65.
Also, service 111 can't possibly integrate with service 123
considering the latter is a "stupid route" service.
I don't see why service 147 should be amended.