The future chief executive should concentrate on forging ties with the mainland, according to Leung Chun-ying, a vice-chairman of the Preparatory Committee.
He said the responsibility of running day-to-day affairs of the Special Administrative Region (SAR) could be left to the Chief Secretary.
Mr Leung pointed out the interface between the SAR and other parts of the mainland would need to be fully addressed.
In spite of stipulations in the Basic Law that the central Government deals with defence and foreign relations, he maintained there were still unspecified issues that hinged on the SAR and other mainland local governments and had to be dealt with.
Mr Leung cited the policy of migration and cross-border visits, economic co-operation and infrastructure co-ordination between the SAR and the mainland.
He urged local people to give their thoughts and views on the issues.
The future chief executive, Mr Leung said, should be able to build up contacts with officials at central and local levels.
He said it would be important for the chief executive to be able to maintain regular contacts at all levels and directly talk to officials in emergencies.
'For instance, what if Deng Xiaoping dies now? We need to have immediate and full reports on the latest situation in Guangdong. What about our factories and the local people working there? What about the water supply and rail transport?' he said.
Mr Leung said it might also be necessary to set up another Chinese government body in the SAR after the handover to deal with other issues that were not defined under the Basic Law.
Separately, Mr Leung said the provisional legislature should be set up early to give its thoughts on issues such as laws on subversion.
This was because, he said, it would be a matter for the legislature to enact laws on its own to put into force some provisions including the ban against subversion under the Basic Law.
'There's no point in asking what Chinese officials think about what 'advocacy' and 'objective reporting' mean because it is to be decided by the legislature,' Mr Leung said.
The earlier the provisional legislature met, he said, the earlier there would be a clearer picture of the issues.