Our questions include, how did we arrive at our doctrines? Does the Bible really teach what we think it teaches? Why do churches do what they do? What is the biblical basis of church leadership structure? Why do certain traditions get entrenched?
It's easy to be spoon fed the conventional wisdom, but it's an entirely separate thing to search these things out for one's self. In the past we have read the Bible with these unexamined understandings and interpreted what we read through those lenses. We were lazy about our Bible study, assuming that pastors and theologians were telling us the truth, but we rarely checked it out for ourselves.
Therefore, these Rethinks are our attempt to remedy the situation.
We should note that we are not Bible scholars, but we believe that one doesn't need to be in order to understand the Word of God.