Everton's perception of itself and owner might get in the way of a steady DoF coming to fruition but what is the alternative? Their are almost no precedent of modern teams building sustainably, in an era thats manager turnover is higher than ever being successful without a DoF.
People can say there's no point because Moshiri wont allow control, thats the same as saying we cant compete because we have not won anything. That problem is symptomatic of the problem. They have to address that, if they don't the pattern will repeat itself which is again the problem.
I think Everton would be wise to simply scale the models of say Brighton, Brentford or even Norwich and shop in the market at a similar price point yet with larger resources and leverage. Sadly I think the club would scoff being compared to relegation fighting teams, but they are better run with the framework of improving. They would much rather continue buying big 6 cast offs at inflated prices that stagnate improvement season to season, don't provide revenue in sell ons and leave fans and owners feeling like we underachieve every year.