coca cola - 10 billion dollars or whatever, change logo and lose 10% sales , spend 10 million and redesign logo and sales go back up , short term they lost a couple hundred million in sales but by rectifying their mistakes they potentially saved themselves billions
everton - 120 mil company (according to kenwright) spend 1 mil on new logo (lets say) and lose 90% sales, spend 1 mil again and redesign logo and sales go back up to normal, long term they lose 1 mil (from the initial rebranding) and do not generate enough sales to make a profit.
so everton gains nothing financially by changing the logo back, because if they do then they money they make from the merchandise they will have spent on redesigning and buying new merchandise to put the new design on. Coca Cola can afford to re-brand quickly because of their finances
everton cannot.
simply put they would be losing money to appease fans. can you see kenwright do that?