The one constant in the defined contribution world is change. For once, Congress may have made a change that could unintentionally alter the course of teacher supplemental retirement plans. Up until the end of 2019, there was one big difference between the 403(b) and the 457(b) that tended to favor contributing to a 403(b) over a 457(b). Thanks to a law passed at the end of 2019, that major difference is now gone and contributing to a 457(b) before a 403(b) could make more sense. In fact, it could completely change the defined contribution plan landscape for public school employees going forward.