I still have those questions - do you define competency requirements for your MR and have you performed an 'evaluation' of competency?
And I will answer the question! Yes, it's possible for anyone to be in a job for three years and still not be competent - if there's no defined competency requirements and there's never been an evaluation, let me explain:
In the training industry, it is well known that there are 4 phases of adult learning:-
- Unconscious incompetence
- Conscious incompetence
- Conscious competence
- Unconscious competence
None of these phases is concrete - we all move through each phase, to and fro, as things change.
For example, although I've used a pc for many years, I've recently moved to a Mac and have to discover all kinds of new tricks - some were easier than others! I'm still discovering many features and sometimes go to close a screen in the top right hand - like windows - instead of the top left hand.
This is event based, not time based and you could find that 360+ days after something changed, you might have someone who is unconsciously incompetent in some aspect of their job - they don't know what they don't know...so management had better discover what that person's competency needs to be without waiting too long!