I think you're both right.
Levy's job should have been to leverage his considerable skills and focus on what he was good at. Great leaders then introduce other senior members to cover their own portfolio gaps. Levy clearly had gaps on the football ops side but was too stubborn to get out of the way and let more skilled people manage those aspects. That is, if he could even identify his own gaps. I would have never had him anywhere near hiring managers. I would never have had him in a negotiation room. He hasn't got the sales and marketing DNA and he hasn't got the charisma to build the types of relationships that close deals. His running of an organisation definitely doesn't build the right culture either and that permeates around the place. His comms were always terrible.
However, the buck stops at the CEO. It was all on Levy's watch and he was accountable. Ultimately, the reason he was removed in the end was because his running of the club (especially post stadium opening) was shockingly bad. The conflict in what you say is because of his blindspots. Yes, he would need to act as CEO but his lack of competence in football ops was always introducing his blindspots.
The net, net is that we needed someone different and now we get to find out. Way too early to judge the new regime in my opinion. Perhaps they will have to intervene less and less as they make the right hires beneath them. Levy never did and became transfixed with Caplehorn, Cullen and Collecott.