" because they are exceptionally canny at seeing which way the wind is blowing and taking the course of action which will best ensure the future of the MAT."
Exactly. Most successful heads - and CEOs of MATs IME even more so - essentially look at the world through a 'how can I turn this to the best advantage / least disadvantage for my school?' prism.
I wonder what my DCs' comp might do. It is a highly successful, honeypot 'other' school in a partially grammar area, that increasingly draws in MC children who do pass the 11+ but see no point in taking up their places given the travel involved, and thus has an unusually low %FSM.
The risk to them would come if another local school decided to become or was set up as a grammar - there is already some risk because the grammars are increasing their PANs - and thus the school risked losing a higher proportion of its most able pupils to grammars than it already does. I think in that case it would turn grammar 'protectively', rather than fight the consequences of that exodus, despite clearly stating in the past that they believe that comprehensives are best placed to meet the needs of all pupils.