Wes,
If Dr. Koester is promoting “egalitarianism” I do not know, but I have read his views on Romans 16 which includes Phoebe, but not limited to her. I myself am not an “egalitarian”. I do believe in the creative order. At this point in my pilgrimage, I am simply studying to understand the big picture in regards to roles of women in the Body of Christ. Yes, I did read Pilgrims links and past forum of 1 Tim. 3:11.
Here is a list of areas I am working through:

1. Is the creative order in respect to the immediate family?
2. Is the reason woman are not mentioned in passages of leadership, due to the general low view of woman during that period of time in Greece and the Middle East in general.
3. What would the general consensus be if 1 Cor. 14:34-35 and 1Tim. 2:12 did not exist with regards to the whole of Scripture (Systematic Theology).
4. What if 1 Cor. 14:34-35 was added to the original translation at a later time? What if 1Cor. 14:34 was a note left in the margin of the original letter of Paul, and translators really didn’t know where it belongs in the chapter; may be after verse 40 of the same chapter? Why the disparity between 1 Cor. 11: 5 and 14:34-35?
5. What if the translators should have used “wife and husband” in 1Tim. 2:12, instead of “woman and man” (same Greek word for both aspects)? And was this in respect to the home setting or the church setting?
6. Are we also to take a literal view of verse 9 and 15 of 1 Tim. Chp. 2?