He called for greater guarantees that governments will complete their four-year term, with a stable electoral system that could only be changed by a three-fifths majority in Parliament, as well as more flexible governments combined with three permanent deputy ministers in foreign affairs, defence and the budget, each with a five-year term.
Other proposals included the abolition of the current plethora of ministry general secretaries, allowing only one per ministry, an end to current privileges for MPs and ministers with respect to the law - including abolition of the law on ministerial responsibility - and a revision of article 90 to ensure fully independent justice and stronger separation of the government from the legislature and justice.
Among others, Samaras proposed the introduction of measures barring MPs from becoming ministers, so that entering Parliament was no longer a stepping-stone for joining the government.
He also called for enhanced democracy in the political system and guarantees of transparency in relation to political party finances, updating laws governing the mass media, establishing a Constitutional Court and increasing accountability in public office, from that of premier down to mayors and trade unionists.
Regarding the environment, the prime minister said that articles 24 and 117 of the Constitution need to revised to protect this more fully, while he also called for changes to the controversial article 16 that bans private universities in Greece "so that knowledge and research do not remain an unproductive monopoly in the hands of a few".
Other changes suggested by Samaras included a revision of articles on holding referendums, so that these could be held by popular initiative, changes to rules for independent authorities, and "protecting the right of free movement and unobstructed access" by restricting demonstrations and protests.