A new Professional Growth System and Contract for MCEA

I do have some ideas here. And while I agree with certain principles like merit based pay, I really don't know what the specifics should look like. This op-ed in the Washington Post comes off a little extreme in my estimation, although I agree with the sentiment. It seems to me like MCEA could/should endorse an idea that ensures the right to collective bargaining while still promoting competition among its members to be the best possible teachers they can be. Let me just throw out a number. What if 10% of each teacher's salary was determined by a rating scale that evaluated teachers based on, among other things, student achievement data? What is so repulsive about that?