Canadian theologian, Douglas John Hall, who taught theology at McGill University in Montreal, has written an essay on "How my mind has changed," in the Christian Century. Hall, I've often thought, is more of a Lutheran than a devoted United Church member. Why he did not become a Lutheran is difficult to understand, given his insights into and gravitation to Martin Luther and his theologia Crucis [theology of the cross]. Hall is still very counterculture when it comes to the modus operandi of mainline North American denominations. He believes that the majority of North American denominations have missed Jesus' teachings on the "small things" [e.g. his saying on salt and yeast] and their value are paradigmatic for an ecclesiology of the cross in our present day context. You can read his essay here.