> I am an engineering manager.

Strange. A good engineering manager would see that "way too big" PoE daughter board design as exactly what one would want in a reference design that will be used to test and integrate your preferred PoE solution. Power product life cycles are so short and availability problems so frequent that a good engineering manager knows that their engineers will be reworking power solutions with some regularity.

A good engineering manager would also know that UI development for commercial products is not optional. The engineering manager will expect that marketing will want branding at the very least, that differentiating features will need to be surfaced, etc., and that all of this will need to be integrated into build, test and the package system, and QA'd on real hardware. Basic stuff for an engineering manager.