I have heard this before by some bowlers. Can it actually be done?.
When I am on the approach I get set. My feet are in the position, I try to get in the proper stance, I have already decided my target, and how I want to throw. Everything in place, decision has been made, now its time to execute. Now I might not get it everything right and cause me to make a bad throw (miss target, not follow through, not balanced at the line).