The 'Pro-Leader' side – Green Yes

Supporters of the 'Green Yes' campaign for a yes vote in the referendum included the then-principal speaker Caroline Lucas MEP, Siân Berry, Darren Johnson AM (a Green member of the London Assembly), environmental commentator and Green member Mark Lynas, former principal speaker Jonathon Porritt, councillors from Lewisham, Brighton, Norwich, Leicester and Lancaster, and members of the Green Party Executive (GPEx), including Jim Killock (external communications officer), elections coordinator Peter Cranie and Khalid Hussenbux, the party's financial coordinator.^[6]

The Green Yes campaign believed that the Green Party needed a leader to reach its potential and that, if the party did not reach its potential, it would be "selling-short our planet and everything on it". They suggested that the party's success has been too slow and that "a leader would help set direction, political focus and make sure the party gets the resources to grow". The campaign hoped that having a Leader would be "about empowering the party" and "about accountability", in that a Leader would "mean we can identify who to hold to account when things need changing". The group added that other Green Parties in the world had leaders and remained "just as Green as the rest of us".^[6]

Mark Lynas, in several editions of his New Statesman blog, further claimed that the name 'Principal Speaker' was not transparent to the public, that it wasted valuable time in explaining the system to the media and that it lacked credibility.^[7] Darren Johnson characterized the lack of single leader as "just a ridiculous barrier in terms of getting our really important message across".^[8]

The 'Anti-Leader' side – Green Empowerment

Supporters of the 'Green Empowerment' campaign for a no vote in the leadership referendum included the then-Principal Speaker Derek Wall, Jenny Jones AM (a Green member of the London Assembly), the late Timothy Beaumont (Green member of the House of Lords), prominent human rights campaigner and Green member Peter Tatchell, Noel Lynch (London Green Party Coordinator and former London Assembly member), councillors from Scarborough, Lewisham, York, Norwich and Hackney, and members of the Green Party Executive (GPEx), including Campaigns Coordinator, Tim Summers, and Pete McAskie (Management Coordinator).^[9] Some members, like Matt Sellwood, while in favour of a Leader system in principle, were opposed to the current referendum because the term of reelection would be extended to two years.^{[citation needed]}

Supporters of Green Empowerment wanted to "uphold the Green Party's long-standing commitment to non-hierarchical structures and 'grassroots' democracy" through "collective leadership". They believed that a single leader "would not only draw attention away from other speakers and the wider Party, but would bring with it risks that the other parties in this country are all too well aware of". The campaign focused on retaining gender balance in party structures, and avoiding the dilution of their radical policies. They focused on success under the Principal Speaker system, seen in the steady buildup of support from the low point of the 1992 general election to the situation at the time of the referendum, where the party has over 100 councilors along with two members of the European Parliament and two members of the London Assembly.^[9]

Derek Wall countered pro-leader arguments by stating that "if you are a clear speaker, there's no problem getting coverage and explaining the party's views." He was concerned by the history of past political parties that started off as being participatory until they adopted a single leader system in which the members became "puppets".^[8] Wall also opposed the reduction in numbers of Principal Speakers from six to two in 1992, as advocated by the Green 2000 group.^[2]

Timeline