Precisely because a satisfactory treatment of this topic would require at least one lengthy speech on its own, it seems reasonably clear that teaching and scholarship should highlight the SIFI problem, appraise the regulatory approach toward such institutions since the crisis, and consider alternatives.
An appraisal of whether more or, as some would have it, fewer measures are needed under the approach taken in the Dodd-Frank Act and related regulatory actions will, I admit, be a little challenging.