If this is true for BI (which I tend to agree with), then this even more true for ETL. End users have an even less of a chance of doing data wrangling. Rather,

If this is true for BI (which I tend to agree with), then this even more true for ETL. End users have an even less of a chance of doing data wrangling. Rather, it’s the technical folks that’ll do it. What we learned in building AWS Glue was that it wasn’t just about the context — it was also about escape valves. Escape valves are tools necessary to get out of a situation that wasn’t anticipated. When the answer doesn’t make sense, the technical users are the only ones that have the know how to debug it.