OTES: An Update or a Downgrade?

This article discusses issues that the new Ohio Teacher Evaluation System (OTES) will present for educators and administrators.  Half of the new evaluations will be determined by student performance assessments, which means that a veteran teacher will have to risk their own job performance on a novice (student teacher) in order to provide an opportunity for hands-on in-class experience for student teachers.  This seems almost like a punishment for good teachers who want to help future generations of teachers.  This disincentive means that most veteran teachers won't take the risk, therefore eliminating the opportunity for most student teachers to run a class unsupervised before they have a job placement.  In this article, http://stateimpact.npr.org/ohio/2013/02/18/how-ohios-new-teacher-evaluations-will-change-student-teaching/

veteran teacher Barb Sole says that she will no longer give up her classroom for 8-12 weeks to a student teacher, despite her love and years of support of student teaching.  

The hope for officials is that this "higher stakes" evaluation system will encourage teachers to put more effort into their work in the classroom, and weed out teachers that are struggling.  However, it seems that this new system will instead punish student teachers, which could in turn eliminate an irreplaceable opportunity for aspiring teachers by not giving them the necessary experience in the classroom and chance to learn from veteran teachers in a mentor type atmosphere.  In the long-run, it seems that the future of education will suffer, and bureaucrats will be creating an even worse situation, which will breed even more red tape and bureaucrats to fix the problem they are creating.  

       It's sad to think that most of the people making policies in education, have never even been in the classroom, and therefore don't understand what teachers need, let alone what students need.  The people who really suffer are the children, because teachers aren't able to freely educate on a case by case basis, and there is less and less room for mistakes made by young teachers as this anti-teacher mania increases.  The article says that student teaching itself will continue, but that the idea of veteran teachers leaving the classroom will cease.  The article states that a co-teaching model will most likely develop, where the veteran works alongside the student teacher.  However, not only will student teachers be losing out on invaluable experience from teaching alone, but also it seems that veteran teachers are still taking a risk by agreeing to allow a student teacher to teach the class at all, even if monitored by the teacher, because its just as likely that mistakes will be made.  How could a teacher reconcile mistakes without taking back control of a class in the middle of it? And wouldn't the confusion from having two teachers fighting for control damage the students' confidence in the teachers themselves?