Two dated charts with names and titles, one for each entity, supported by payroll records, employment letters and evidence of her actual authority: hiring approvals, budget sign-offs, minutes of meetings she chaired. Assertions about capacity carry little weight without the ordinary paperwork of running a business behind them.
Show authority through records, not adjectives
Charts are the spine of the file, and they should be real. For the Canadian side, produce a chart naming the superintendent, quality manager, maintenance lead and their own reports, with T4 slips or payroll summaries covering Delphine's continuous employment and a letter confirming her title and dates. Add documents proving discretion in practice: signed offers for staff she recruited, capital requests she approved, a performance review she conducted, board minutes recording decisions she brought forward.
For the American side, produce the plant's current payroll and chart as acquired, then the projected chart with hiring dates and the money allocated. Where an essential function rather than people is being managed, describe the function and her control of it. A description written for the petition and unsupported by records reads as advocacy, and adjudicators recognise it.