Diversify. My bush beans are being eaten by chipmunks or rabbits and are a loss, but my pole beans (3 different varieties) are doing great! But even there, I have a favorite type that is outperforming the others. I will plant more of those next year. Cherry tomatoes ripen earlier than the larger varieties, and therefore are more productive in a freakishly cool summer like this one (in Chicago, not Seattle). I have at least 5 different types of tomatoes this season. How else will you know what works best in your soil/climate/light conditions?