I'm trying to figure out what term to use to describe this situation:
I work in a particular field that is quite vast, and has many specialized areas. When I'm asked to evaluate someone else's abilities, I don't feel comfortable, because although I'm considered an expert on A, B, and C, someone else might be an expert in D, E, and F. That doesn't make either of us better or worse than the other, but it makes it hard to evaluate someone on the field-level as good or bad because the field or position is so ___________.
For some reason I keep wanting to say "subjective", but after reading the actual definition I don't think that's the right word I'm looking for.