A "two-track" faith?

Archbishop of Canterbury Rowan Williams indicates that the worldwide Anglican Communion will have to accept "...the possibility ... of a 'two-track' model, two ways of witnessing to the Anglican heritage, one of which had decided that local autonomy had to be the prevailing value system." (story here) This is in an attempt to maintain unity by allowing individual churches to hold different opinions about gay clergy and same-sex unions.
Perhaps taking a page from Solomon, the archbishop seems to be willing to sacrifice the child so that each group can have a piece of what they want. Though I note that Solomon never did actually cut the baby in two.
The Archbishop presented his reflections on his website (link here) on Monday. Archbishop Williams notes that a key question is "...whether the Church is free to recognise same-sex unions by means of public blessings that are seen as being, at the very least, analogous to Christian marriage," and he also recognizes that a positive answer to that requires a rethinking of the way the church has read the bible for the past two thousand years.
I am led to wonder that if, in an effort to be all inclusive by having a tent that is open on all sides with no regard for scripture or tradition, we find ourselves completely outside any tent and merely wandering in the wilderness.