Do legal powers of interim board change if special measures are lifted?

From EDP:

The paper said: 'Opponents to the conversion of Cavell Primary School say the interim executive board (IEB) – which replaced the board of governors last year – does not have the power to request the conversion, and have threatened legal action should the bid go ahead.



However the IEB 'insists that joining the Right for Success Trust, which already runs the outstanding-rated Eaton Hall School, is necessary to bring “long-term and sustained improvement to the school”, and that “the status quo is not an option”.'