One of the main benefits of MBWA was recognised by W. Edwards Deming, who once wrote:
“If you wait for people to come to you, you'll only get small problems. You must go and find them. The big problems are where people don't realise they have one in the first place.”
The difficulty with MBWA is that (certainly at first) employees suspect it is an excuse for managers to spy and interfere unnecessarily. This suspicion usually falls away if the walkabouts occur regularly, and if everyone can see their benefits.
MBWA has been found to be particularly helpful when an organisation is under exceptional stress; for instance, after a significant corporate reorganisation has been announced or when a takeover is about to take place. It is no good practising MBWA for the first time on such occasions, however. It has to have become a regular practice before the stress arises.
By the turn of the century it did not seem extraordinary that managers should manage by walking about. The technologies of mobile communications made it so much easier for them to both walk about and stay in touch at the same time. But in the 1950s many white-collar managers turned their offices into fortresses from which they rarely emerged. Edicts were sent out to the blue-collar workforce whom they rarely met face-to-face. The outside world filtered through via a secretary who, traditionally, sat like a guard dog in front of their (usually closed) office door. Even in the 1980s such practices were not uncommon, as demonstrated in the film “Nine to Five”.