The pursuit of sustainability is a noble undertaking and unarguably ‘a good thing’. The concept can hardly be denied as something that is good for future societal wellbeing. However, beyond a superficial acknowledgement of the inherent ‘goodness’ of sustainability, there is much to be gained through the re-framing of sustainability as an engineered product from an underlying system as opposed to a ‘development goal’. In pursuit of this Mindshift, following an introduction and discussion of the sustainability landscape, three challenges for sustainable systems development are explored. The first Mindshift challenge examines sustainability as a product from an underlying system. Thus, the focus is shifted from sustainability as a goal to sustainability as a purposefully designed product from an engineered system. The second Mindshift challenge explores sustainability through the lenses of Systems Theory. Systems Theory exist as a set of axioms (taken for granted ‘truths’) and propositions (system concepts, laws, and principles) that govern the behavior, structure, and performance of systems. The implications of Systems Theory have profound implications for how we view sustainability. The third Mindshift challenge suggests that sustainability can be enhanced through the purposeful identification, assessment, and resolution of violations of system propositions (pathologies) spanning design, execution, and development. Thus, sustainability is a ‘systems engineered product’ resulting from an underlying system and developed by addressing systems-based disparities (pathologies) in the system. The paper closes with a capsule of Mindshift challenges for sustainability and their implications for supporting the INCOSE SE Vision 2035.