Notice that the fisherman were skilled at their jobs and had been doing the work for years. They did not change their technique. What was the difference? The inspiration, the sense of the abundance of Spirit, maybe the sense of being connected to something larger than themselves, bigger than their expertise or the vagaries of chance, weather, etc.
Sometimes when we are feeling or fearing that we are ineffective in our work, we think we most need better training, a new technique, more effort, better luck or connections, or maybe a new field. Maybe what we most need is actually a fuller sense of Spirit present, moving, smoothing, bringing to abundance, supporting and providing for everyone with a sense of fullness, effectiveness, and meaning. Maybe less trying, more feeling the presence of Love.