To Daas Yochid:
What evidence do you have that failure to provide lifetime tenure to non-performing rabbonim in chinuch will jeopardize the future supply of rabbonim willing to pursue a career in chinuch. One hears the same argument with respect to public service employment, etc. I would suggest that imposing some market discipline would benefit the market, since right now, there are too many rabbonim coming out of yeshivot who surpress the salary of teachers. If the supply curves bends down relative to a fixed or growing demand curve, wages will rise and thereby attract more highly qualified yungerleit receiving semicah to pursue a career in chinuch. Our schools are not designed, nor should they be asked, to function as employers of last resort for rabbonim lacking teaching skills.