>The work is downstream of engineering, product, and office politics, meaning the work was only often as good as the weakest link in that chain.

>The work was often very low value-add to the business (often compensating for incompetence up the management chain).

The chain is what is important. This is not a data science specific issue.

Swap in or rearrange any team names to the original list and the last position or two will find this article true.