Tenure needs to be protected, so that teachers can deliver challenging lessons without any worry of repercussion.
In my former work life, I was a business owner. Things were not going well (I thought...), and applicants who strolled into my shop lacked skills to fill out a job application. (I blamed teachers...) During lunch one day, a friend suggested I finish my education and teach. I did.
I once believed that a teacher's pay should be based on performance, until I learned that teaching is a team effort. For example: if a struggling student has finely experiences success under my watch, it is not necessarily because I am a brilliant teacher. Most likely, it is due to my lesson, that built upon a similar lesson given the year prior, and still, another lesson taught the year before that. My education about teaching and educators did not end with that epiphany; however.
Teachers deal with social pressures beyond the classroom that constantly create one obstacle after another inside the classroom; much of it consists of politics and family dynamics. (Ooooh! That's a hub!)
I am ready to end my teaching career (I miss being my own boss and lately my wallet is thin), but I will always have a place in my heart for teachers. They are the most under paid, caring and professional people, and it has been my pleasure to work with them.