Here is a perspective on the use of the word "excellence" in church life from the blog, "out of URl"
It's an emergent church perspective. (Emergent church is out-of-the-box, youth oriented Christian church movement) It's an interesting blog... I always think it's nice to know we're not alone in our agonizing about churchy issues!
Just a few more thoughts of mine on this issue; firstly, I never thought that "excellent" and "perfect" were synonyms. secondly, I wonder what word between "competent", which we surely must expect of everyone, and "excellent", which is seen as out of reach, might we want to put forward? For myself, I'm leaning towards thinking of "excellencies", as a way of suggesting that there are many ways one can be doing high quality work and they are likely to look very different.
Finally, and most importantly, I do hope that we go forward with looking at how to move in the direction of "better" even if we have not found the perfect words to describe our initiative.