In a recent masterclass recap by Encord, the challenges of deploying computer vision models in production were explored, focusing on why these models often fail despite accurate training. The session highlighted that failures frequently arise from edge cases—instances in datasets that deviate significantly from typical examples, such as low-light images or unusual object orientations. These edge cases can lead to performance drops, which are exacerbated by issues like labeling errors, poor data quality, data drift, and static models. Strategies for identifying and addressing these problems include segmenting datasets by metadata to track performance dips, visualizing patterns of failure through embedding plots, and leveraging metric correlations to pinpoint problematic data features. The case study of SwingVision, an AI platform analyzing tennis matches, demonstrated how detecting and curating diverse training samples helped improve model robustness. The session emphasized that labeling every piece of data is inefficient; instead, focusing on high-value samples can lead to better resource allocation. Encord's platform facilitates the active learning cycle, enabling continuous improvement through strategic data curation and evaluation, which ultimately enhances model reliability in real-world conditions by adopting smarter data practices.