When the methods you have used lose their effectiveness, its time to change.: "People doggedly remain loyal to concepts that either never worked well, or are no longer effective.
In order to develop a new method, plan, agenda, procedure or paradigm, it is useful to take a long hard look at where the old method has failed. If you skip this important step, there is a strong likelihood that you will simply grasp hold of another paradigm which will also leave you out in the cold."
'via Blog this'