A professor can be constituted-of-or-filled-with (trade policy).
A professor can be constituted-of-or-filled-with (election law).
Adjunct professor can be constituted-of-or-filled-with marketing.
A professor can be constituted-of-or-filled-with international trade.
A professor can be constituted-of-or-filled-with political economics.
A professor can be constituted-of-or-filled-with public relations.