...are not intended to be "THE" articles, as in the definitive word in profit center management. Not only are the articles not intended to be the beginning and the end, they are specifically intended to be neither the beginning nor the end. the articles are meant to be the middle. The beginning means being the right person for the job, loving where you work, and having an undying passion to succeed. The end means not spending all the money so there will be some left for the bottom line.
Then there is the middle, which the articles explores. The title is what it is because these articles were written separately and never intended to congregate in one place at the same time. The middle that the articles deals with includes topics such as:
what part of the market should you attack
how many areas should you attack at once (focus)
which customers will make you the most money and which will cost you money
how to get those customers to give you their business
how to best allocate resources to profitably retain the right customers
how to set your profit center up to gain share profitably
In short, if you have the will to win, the articles will help you set the playing field so that you have at worst a fair fight, and at best, an unfair advantage.