These two pots of Calla Lilies are bringing the lesson of 2016. A month ago these pots contained nothing but dirt and the dormant bulbs from last summer. By the end of spring both had green shoots emerging from the dirt. The pot on the right started with many shoots, the left pot had only a couple. A few weeks later the left pot had sprouted two proud, vibrant flowers while the pot on the right has nothing to show for itself but leaves on leaves.
The obvious moral is that if you diversify your attention and resources to too many things you're going to end up with a bunch of leaves and no flowers. By focusing on only a couple of candidates you're better placed to bring them to fruition.