facilitator是什么意思啊？

前不久有人问focus group facilitator如何译。依我看，难译的不 是focus group，而是facilitator。前者说成“专题小组” 没大问题，可后者呢？负责人？组长？主持人？乍看都行， 却没有一个经得起推敲，因为哪一个都不全象 facilitator。
是context不清？不完全是。Context再明，还是不好译。关键在于
facilitator这时髦词儿本身太过“一脚踢”(广东话)了，包容的意 义实在太多了，似乎没有任何现代汉语词儿能单独担负起来。

Facilitator 究竟是干什么的，得先细细体会。辞典的解释一般不超 过 a person who makes the process of an activity easier的 范围，因为 to facilitate 原意就是to make easier。在具体使用
中，它到底担负哪些任务呢？ 请先看一段从网上摘下的文字：

A facilitator is a person that is not necessarily an expert on a specific issue (though can be), but an expert on process. A facilitator is trained in communication (verbal and non-verbal), working with people, resistance,
group dynamics, effective meetings, decision-making, workshop-design and implementation, dealing with crises. A facilitator's speciality is, literary translated from Latin, "to make things work".. .

看来，facilitator 从事的活动内容都少不了 to plan, to conduct , to manage, to synergize，等等，汉语有哪一个词与之相当呢？ 好象没有。再看