Have the revised connection between knowledge and duties assessed before relying on the earlier file. Identify what experience remains relevant.
Do not rely on an unrelated achievement
Explain the new responsibilities and any learning still required. A patent or past project should not be used to imply current knowledge of unrelated work. Keep the proposed start subject to the appropriate immigration steps.
Separate the underlying methodology, problem-solving approach, or organizational process the applicant already knows from the specific tool or technology used to apply it, since the first can transfer even when the second changes completely. Look for evidence of an active knowledge bridge, such as documented training the applicant has already completed on the new technology or mentoring the applicant has already provided to others learning it, rather than relying on a past achievement alone to imply current familiarity. Identify precisely which responsibilities depend on the new technology specifically and which depend on judgment or process knowledge that does not change with the tool, and treat the second category as the stronger evidence of genuine readiness.
Ask a colleague who has already made a similar transition to describe what carried over and what had to be learned from the current point of view, not with the benefit of hindsight. Keep the explanation focused on demonstrated, current knowledge rather than potential the applicant is expected to develop after the assignment begins, since potential alone is difficult for a reviewer to verify.