After Foundationalism

Am reading and attempting to understand The Postfoundationalist Task of Theology: Wolfhart Pannenberg and the New Theological Rationality by LeRon Shults. One of the things he is trying to do is describe the options between two extremes. On the one hand, there is Foundationalism. It received its initiation by Descartes, Locke, and the ensuing Enlightenment and it viewed that certainty could be achieved by their reasoning from obvious foundational truths (I'm simplifying of course). On the other hand, there is the extreme postmodernism of complete relativism. There is no context-independent truth. Am wrestling with the second chapter where LeRon is describing various "middle ground" approaches of various theologian/philosophers who acknowledge that we have moved beyond the Age of Reason but don't want to go the full distance to the other extreme. The term "postmodernism" often refers to this extreme end and "postfoundationalism" may perhaps capture the idea that there are a range of options being investigated and that perhaps "truth is still in", as he quotes Dutch Theologian Andy Sanders as wanting to believe.