What is the difference between columnists and the editorial board?

Columnists write opinion pieces. The editorial board decides what is on the front page. Members of the editorial board publish opinions about political candidates. Columnists generally avoid taking a position on candidates. Columnists express their own opinions under their own bylines. The editorial board writes unsigned opinions representing its members’ shared views. Members of the editorial board generally have had long careers in journalism. Columnists are often new to the field. None of the above.