Sales Manager

The increase of this efficiency is essentially the problem of the manager, and the amount to which it can be increased by proper study is, in most cases, so great as to be almost incredible.

Theory is a dirty word in some managerial quarters. That is rather curious, because all of us, managers especially, can no more get along without theories than libraries can get along without catalogs — and for the same reason: theories help us make sense of incoming information.

The sales department isn't the whole company, but the whole company had better be the sales department.