All of those possibilities though are very different from what CUPE is saying.
The CIRB has several full time vice chairs who appear to be parts of some panels. I'm sure she'll be live to the perceived conflict and can steer clear of it. I don't think it's realistic to think that a tribunal dealing with industrial relations and necessarily populated with experienced industrial relations counsel or representatives will be able to entirely avoid overlaps like this. Similarly I'm sure to avoid a similar conflict, they won't appoint Paul Moist from their roster to be the Employee Representative member for this particular one given his 12 years as president of CUPE.