[q1w2]

> The open-office concept was designed by executives who have their own private offices.

I've seen executives sit on the floor with employees. Whether or not it works depends on whether the type of work requires attention or concentration.

Jobs like answering phones, clerical work, mail processing, negotiating/trading, selling, etc... - those are jobs that require attention and can be done in an open setting, and it often increases productivity for people to be working together in an open environment.

Jobs that require concentration, like planning, programming, etc... - those are jobs that are better to be done in quiet, without distraction.