I wrote a piece on this blog about variety, and the necessity to change the program you use, in order to expose the body to a range of stimuli, strength, flexibility, power, endurance, etc. This is all true.
The side we didn't discuss is the need for one to accomplish a program, and more importantly a lift, and progressively get better at that lift or movement. That could mean more weight, faster movement patterns, or a quicker time for a number of reps, but some sort of measurable improvement is elusive but never the less necessary.
Have enough patience with a program or movement to show improvement, and then move on. Hanging around with the same programs for too long is equally as bad, mentally or physically.
When you have reached your physical or mental capacity with one movement, move on and develop another facet of your athleticism, don't wait for injury or boredom to wake you up.
