The aim of this Special Issue was to generate a new integrated agenda for research on transfer of training. It brought together scholars from diverse perspectives and invited them to strive toward synergy. This article examines how this collection of articles, as well as other bodies of literature, can help extend, broaden and rethink current research on transfer of training. The lack of articulation between the concepts of training and learning, and the missed opportunities for capitalizing on the synergies with research on transfer of learning, are examined. The new insights that could be gained by rethinking research on transfer of training from a perspective of transfer as boundary crossing are also discussed. Finally, the significance of both reconceptualizing "transfer of training" as "transfer of learning from training" within a perspective of adaptive learning and actively seeking cross-fertilisation with the literatures on transfer of learning and boundary crossing is highlighted.