"Teachers CAN'T assign whole-class books, but CAN be held accountability for reading scores?"Teachers should run schools. Or else we should forget about schools, and just have teachers.
That sums up why I won't teach in my district now. I can either teach the kids the concepts needed for their grade OR I can follow your curriculum script in the way you want it followed.
They do not lead to the same outcomes, however. And to require the script and then say it must not have been followed assiduously enough if your scores don't go up is a no-win situation for a teacher, especially a newer teacher who hasn't had years of experience in subverting the requirements!
I'd be careful though of referring to yourself as "reform-minded" -- the word reform itself has been co-opted by larger forces than yourself (not in suburbia, but in urban areas) -- and they too are pushing policies like you want to change. Content free understanding, knowledge not something you need to impart, they can google it, etc.