specialmeasures
My original posting was based on information given at a briefing early on in the Academies program, when Labour was still in office, Academies were few and only sponsored Academies existed. But your direct question focused my mind, and I thought "hang on what is the up to date info?"
So here is some extracted just now from two Government websites
First a succinct description of what a sponsor does from a DFE website
"An Academy sponsor is a member of the sponsored Academy trust, and as such has a great level of control over the set-up of the Academy and the actions the Academy undertakes. The sponsor develops the Academy's ethos, organisation, staffing arrangements, management and leadership and curriculum. It also receives the Academy's budget and controls the school estate."
And if you want to look for your self here is the URL
www.education.gov.uk/b00204911/sponsoring-an-academy/the-role-of-an-academy-sponsor
And now quite a detailed, although still brief, description of how this control is implemented:-
"Academies are set up as charitable companies to
give sponsors and governors broad scope and
responsibility for the ethos, strategic direction
and leadership. The sponsors of the academy
jointly appoint the majority of its governors"
"........ the governing
bodies of academies include stakeholder
governors: a parent governor, a local authority
appointee, and generally the Principal ex officio.
They may also include a teacher and a staff
governor, and one or more community
representatives."
"The academy governors are responsible for:
appointing the Principal
employing the staff
administering the finances
authorising appointments and changes
to terms and conditions
approving the curriculum, personnel
policies and procedures"
And here is the URL (which takes you to a pdf, I have quoted from the chapter on Governance)
www.bis.gov.uk/assets/biscore/corporate/migratedD/ec_group/D167293100713