'It is clearly a substantial piece of work and I shall ask for it to be put on the agenda for the next meeting of the Spending Plans Task Group.'The Church Growth Research Project reports to the Spending Plans Task Group.
The Spending Plans Task Group reports to both the Archbishops' Council and the Church Commissioners. It was set up 'to help the National Church to reflect on the way that the Church uses its resources'. (See here.)
In March 2014 the membership of the SPTG was as follows (see here, footnote to p.1):
Bishop of London (Chair), Bishop of Sheffield, Dean of York, Christine Hardman, Andreas Whittam Smith, Hywel Rees-Jones, Mike Eastwood, John Spence, Philip James (Secretary).
I don't know the current membership, but at the February 2015 General Synod a question was asked about the membership of Task Groups (see here on Thinking Anglicans) and William Fittall replied saying that he had placed on the noticeboard the membership of various groups, including SPTG. Maybe there is a GS member out there who has kept a record.
See previous posts for more background on my paper.