That same Tribune article mentioned the alternative licensure program having a really poor retention rate too, which makes sense to me. Most people in that situation tend to be coming in from other professions where they lose their jobs, or are looking for retirement or benefits. In my experience they tend to have a much smaller tolerance for everything versus those of use who went through traditional college prep programs.
I think there's another factor though that isn't being discussed and it's the teacher programs through the 2020 shut down and into the 2021 graduating classes. Student teaching in that time was not the same as it was before, and I think it put most of those graduates really on their back foot even as they entered the job market. Additionally I think there's going to be a bit of a stutter with graduates from that 2020 HS class going through college. A LOT of my kids didn't go to college as they planned since it would be virtual. It's going to result I think in less people going through teacher prep course loads. I know some universities in other states have killed education programs because they just don't have the students for them.
Finally, let's be honest. If you could retire in the past couple years a LOT of people decided it was the time - they were out of here. I know if I was at that point in life I probably would have considered it too. I think the math is working out in a negative fashion with retirements, people giving up on education, and not enough people graduating and entering the system.
Is there an easy fix? No. Might help if the state would pay better, fix the amount we pay for health care coverage, and give retirees a boost, but I don't see all of those happening. I'm guessing pay raises come next year from the legislature just so they can look like they care.