He was also influential beyond his own area of expertise, notably with his argument that no single academic discipline could describe reality fully.

Is my question in this person's area of expertise?

Have both parties been given the opportunity to help determine corporate goals, particularly in their own area of expertise?

Logically, given its area of expertise, staff were last year invited to design their own breakout and meeting rooms free of influence from managers.

I launched into a lecture on relative dosage, my area of expertise.