In this video, produced by Hugo Oliveira, Portuguese architect Álvaro Siza denounces the "hyper-specialization" of architecture, outlining its academic roots as well as its practical implications for practice. Siza mentions how, in Portugal, a law was considered to limit architects to their specific specialities - exterior architects could not design interiors, for example. According to Siza, this tendency towards "hyper" or over specialization is unfortunate, as it gives rise to the segmentation of the discipline into subcategories - interior architecture, exterior architecture, landscape architecture, etc. - that undermine collaboration and team work.
Also make sure to check out the first part of this interview, where Siza discusses the obsolescence of buildings.