Although persistence has been touted by many as the key to a successful outcome - variations or minor changes to your approach or perspective when making the additional persistent attempts is very often necessary in order to achieve the desired outcome or even better - drilling in a hole where there is no oil at all or digging where there never was or never will be gold or diamonds will never produce diamonds or gold or oil in those locations - but a slight move to a different location can mean all the difference in the world -

A most effective means of securing a significant increase in business is the idea of:
N-L-A-B-M
ask what that means if you are interested -