I think you have made some good points, but levy and Enic are not the be all and end all ... if they continue with their current form ofcourse fans will not be happy.
In ten years time if we still are in the same place .. will you be saying we'll 30 years ago ...
Enic invested well in Tottenham but let's not get it twisted by thinking no one else could have pushed this club forward from sugar.
Someone could have, how much of a likelihood that is is up for debate - the argument that it would be quite a low chance is that at different times over the PL era Villa Leeds Saudi Sportswashing Machine Everton and West Ham have threatened to be the team to break the top 4 monopoly and none of them achieved it to the extent that we have, 4 of them have been relegated since and the other is perennial relegation candidate (our emergence as a top team along with City made the top four be reconsidered as the big 6) Whereas I'm not too sure what the argument is as to why the likelihood someone would have done as good/better over that time period actually is, beyond pointing out the bad decisions and missed opportunities that taken place over 20+ years