If you don't follow SBC politics too closely and aren't a frequenter of Baptist blogs, you might not be familiar with the two-year long struggle that an Enid, OK Baptist pastor and member of the IMB's board of trustees has fought against some rather notoriously misguided actions and policies of that body. I've read Wade's blog now for the past two years and have found him to be a gracious man, even in the face of scurrilous attacks on him by his detractors.
As a former IMB missionary, I've witnessed firsthand some of the negative impact of convention politics at work. I would encourage you to read his post today that provides a capsule summary of his struggles with the IMB Board of Trustees and the eventual impasse that led to his resignation this week. I posted a rather lengthy comment (about #7 in the comment section) expressing my appreciation to Wade for his efforts on behalf of missionaries and his fight to defend the right of principled dissent.
(The link above isn't working right now, as evidently the post in question has been taken down). Those interested in reading Wade's blog can go to his home page and find his explanation of his decision to resign.