1 2 and 3: for alot of sites the allocation of refresher training or upskilling can be few and far between, causing ESOs to loose interest or feel less relevant causing poor operational discipline for some site even with strict shedualed training days ERT with production roles are often not released to attend regular training contributing to skills gaps and skill fade over time....but of course still counted as an operational number which in turn can demish a healthy ES/ER culture