THE BULLETIN BOARD FURNISHES THE ELEMENT OF CHANGE.—­In order that interest or attention may be held, there must be provision for allied subjects on which the mind is to wander.  This, under Scientific Management, is constantly furnished by the collection of jobs ahead on the bulletin board.  The tasks piled up ahead upon this bulletin board provide a needed and ready change for the subject of attention or interest, which conserves the economic value of concentrated attention of the worker upon his work.  Such future tasks furnish sufficient range of subject for wandering attention to rest the mind from the wearying effect of overconcentration or forced attention.  The assigned task of the future systematizes the “stream of attention,” and an orderly scheme of habits of thought is installed.  When the scheme is an orderly shifting of attention, the mind is doing its best work, for, while the standardized extreme subdivision of Taylor’s plan, the comparison of the ultimate unit, and groupings of units of future tasks are often helps in achieving the present tasks, without such a definite orderly scheme for shifting the attention and interest, the attention will shift to useless subjects, and the result will be scattered.

INCENTIVES MAINTAIN INTEREST.—­The knowledge that a prompt reward will follow success stimulates interest.  The knowledge that this reward is sure concentrates attention and thus maintains interest.

In the same way, the assurance of promotion, and the fact that the worker sees those of his own trade promoted, and knows it is to the advantage of the management, as well as to his advantage, that he also be promoted,—­this also maintains interest in the work.

THIS INTEREST EXTENDS TO THE WORK OF OTHERS.—­The interest is extended to the work of others, not only by the interrelated bonuses, but also by the fact that every man is expected to train up a man to take his place, before he is promoted.

CLOSE RELATIONSHIP OF ALL PARTS OF SCIENTIFIC MANAGEMENT HOLDS INTEREST.—­The attention of the entire organization, as well as of the individual worker, is held by Scientific Management and its teaching, because all parts of Scientific Management are related, and because Scientific Management provides for scientifically directed progression.  Every member of the organization knows that the standards which are taught by Scientific Management contain the permanent elements of past successes, and provide for such development as will assure progress and success in the future.  Every member of the organization realizes that upon his individual cooeperation depends, in part, the stability of Scientific Management, because it is based on universal cooeperation.  This provides an intensity and a continuity of interest that would still hold, even though some particular element might lose its interest.

THIS RELATIONSHIP ALSO PROVIDES FOR ASSOCIATIONS.—­The close relationship of all parts of Scientific Management provides that all ideas are associated, and are so closely connected that they can act as a single group, or any selected number of elements can act as a group.