Thoughts on "effective" teaching at Westminster

Today the Symphonic Choir sang at the Princeton High School's dedication ceremony for the new performance space. My experience singing with the choir today made me think about 'effective' teaching at Westminster. I sing in the Soprano II section. Throughout the whole concert, I noticed that two of the singers that stand behind me not only continue to make the same mistakes every day at rehearsal (and therefore at the concert), but also were singing with such an uncontrolled vibrato that they weren't blending. Not to mention that my left ear was ringing by the end of the concert.

I am sure that these singers' respective voice teachers have probably either talked about the difference between choral singing and solo singing, or at least tried to work on an even vibrato for these singers to use for particular time periods. My question is why they, along with the entire choir, don't bring it into choir rehearsals and performances? Similarly, we all learn to sight read at Westminster. Yet when we read new music it's as if we have never been asked to sight read before and 60 % of the choir kind of mouths the words. Finally, no matter how good or bad a student is at sight reading, after repeated practice, there should be no reason to continuously make the same mistakes.

I guess I am just realizing that there is a huge opportunity on our own campus for cross-curricular teaching, and I'd love to see it implemented. If the students cannot see the similarities between sight reading for theory lab and sight reading a piece of music for choir, it is the job of the educators to help them see it. I also think that maybe it is my job as a member of the choir, working for the common goal of a beautiful performance and positive experience. Now, how do I do my part without seeming like a jerk? I'd love your input. I was really frustrated after today's performance, because I know that everyone in that choir is a talented musician and that people are just not giving their all.