Acknowledged. First, the paper is no longer listed as a case study, but as a discussion piece. Second, I note in the paper that I am not making the claim that the co-operative model is part of the third sector.
Given the inclusion of Coule's paper, I would have already expected more sensitivity to divisions unitary and pluralist theories of governance but by reviting this (and reading Turnbull's Cornforth's and Ridley-Duff's precursor to Coule's work), this should be adequately addressed.