[hackermailman]

Teach them by doing code reviews together. By doing this you become a better developer yourself and at the same time prevent your product from sinking and you getting sacked because nobody in management wants to hear your complaints about another coworker they want you to figure it out yourselves. Keep documentation of everything you had to rewrite to ensure high standards are kept then use these records to demand a raise/promotion later instead of telling management you want to be moved.