Mach E Avelli, it is my understanding that in order to be approved for Check and Training, the candidate must have undertaken at least 6 training flights prior to assessment. This does not constitute the role of 'instructor'. Surely they are two different roles???
I completely agree with your comment regarding giving Chief Pilots true control. It is indeed a familiar situation to have to take the cheapest option in very important safety matters. It just isn't good enough!