If you read this 150-page report by the Academies Commission, a body otherwise supportive of academies and set up by Pearson/RSA, you will find criticisms of the way academies are operating now along with recommendations.
It explains the different types of academies - sponsored, converter, forced, free schools (which can be sponsored).
In summary it argues for more collaboration, transparency and accountability, fairer admissions and appeals process, data on applications and acceptances for school places in relation to FSM, better framework for planning and commissioning of school places by LAs which currently cannot set up their own schools or direct academies to expand to meet demand. It also recommends more rigorous selection of sponsors, an annual report on comparative performance of sponsors, funding agreements for sponsorship reduced from seven years to five, etc.
You could also read this recent Commons debate on forced academisation where Conservative MPs voice opinions on the varying quality of academies.
And you can read the Public Accounts Committee report on managing academies expansion scrutinising how the £1 billion extra was spent on converting good/outstanding schools to academies and removing them from LA control.
What I found interesting was the former director of the free schools network said 'there is a less high quality bar for who becomes a sponsor of an academy than for who becomes a sponsor of a free school'. This process was described by the Academies Commission as 'the beauty parade of sponsors'.
And finally for an alternative school improvement programme see this BBC article on the London Challenge and the DfE report that it links to: 'City schools scheme 'more effective than academies'. This links to the Academies Commission report which suggests that federations of local schools may be better than forced academisation with a sponsor.