All of the above plus a lack of respect from the business for the value a competent ESO/ERT can actually deliver. Add in the Dunning Kruger effect of many ESO/ERT and the compounded debasing that occurs when operational vs conversational competence conflicts. For a truly high performance skillset in a field this diverse it needs routine high fidelity training, high levels of personal accountability and responsibility and a dedicated work ethic, unfortunately these attributes are exceedingly rare individually let alone as a combo.