The document summarizes Team DevScope's approach for the Kaggle competition KDM Porto 2019, which involved forecasting hourly agent headcounts at a call center. Their approach included blending regression, time series, and human knowledge models; addressing non-stationarity and a small test set; and extensive post-processing and validation to improve forecasts, especially around holidays. While their blend of approaches achieved first place, they discuss opportunities to better use additional features and automated time series tools in future forecasts.