". . . .  control freedom of expression among faculty members . . . ."

One cannot impose worldly norms on an Adventist institution.  "Freedom of expression" has it limits, and when faculty members (like Desmond Ford at PUC) begin to publiclaly express views which are out of  harmony with church teachings, they should find employment elsewhere.

" . . . .contemporary First World Adventism is a 'Big Tent' . . . ."

An untenable situation, which will eventually lead to either a meaningless organization (like Universalism), or, as Ellen White predicts, a shaking out of those who have rejected truth and embraced the world; precipitated, of course, by events which will make it dangerous to be a SDA.  A church without objective standards ("big tent," come as you are, believe what you want) and beliefs is no longer a true church.