In this article, we examine current and future challenges of the teaching profession by reimagining teacher education using Portugal and the USA (i.e. Texas) as examples. Our comparative analyses in this area began in 2016 when we discovered our common research interests and the relevance of these topics for our contexts. In this paper, we particularly focus on challenges related to (i) the teacher shortage, (ii) the nature of teachers' work, (iii) approaches to teacher education in the aftermath of the COVID-19 pandemic. We argue that times of crisis may present opportunities to enhance the profession, to recognise its increasingly complex and dynamic nature, and to produce solid, multifaceted knowledge of social and educational significance for the future.