To avoid teleology, Darwinism must posit random genetic changes that result in random phenotypic changes. But West-Eberhard’s work shows us there is no such thing as a random phenotypic change. Instead, we can now see that all phenotypic change is goal-directed.
Thus, the evolutionary process has depended upon the inherent, teleological capability of all living things to adapt themselves to circumstances, within and without. It is this capability that explains evolution, not the other way around.