Stuff on efficiency

I frequently come across articles or posts on efficiency at work. Most of is packed with fancy slogans, and that is all very well and good, but is it useful?

Here is an example:
http://smallbusiness.chron.com/increa...

What we get here is some superficial advice and mostly directed towards management, and most of it is expensive advice. An example: "Take your employees on a team-building adventure or an away day."

Will this improve efficiency? I doubt it. It could contribute to a better morale, which could lead to improved efficiency, but it's a lot of maybes.

I hope my book does a better job that articles like these.