I am guessing it involved Bellingham, and if not Bellingham then keeping gundo, and if not keeping gundo rice. I don't imagine they planned to be rejected by all 3, did they? I am also guessing they might have expected to have an easier time selling the likes of Laporte and Cancelo, and they probably didn't expect the saudi money for Mahrez. Also probably expected Gvardiol to land here by the start of pre season (at least according to some posters).
On the plus side, it seems like bernardo will be staying (though i'd like him to sign a new deal), KDB might be back earlier than expected, and kovacic was landed early and cheaply. So some things have definitely went well.
Are any of those huge blunders? Not really. Our squad is still unreal and I think we are on course for another title. But I think there is definitely a compelling case that the initial plan at the beginning of the transfer window looked different