Not for me he isn't. Not for many others either I'd guess.
How many times have you heard "One Daniel Levy" ring around WHL?
Big companies replace their CEOs with other well-qualified highly-competent money men all the time.
Most of the time in the 1980s when I used to go regularly you never heard a soul mention the chairman, apart from when Irving Scholar nearly bankrupted us. That obviously changed with Sugar and the onset of the Chairman-as-Personality era
I'm guessing very few people could tell you who this was without extensive googling...
Irvine Scholar kind of emphasizes my point it was him that shaped 15 years or more of complete dross. look at West Ham it was the owners who sold their soul , chairman are the ones who steer the ship.