> I’m not really sure what they were thinking. My guess would be that developers installed a single Google Tag Manager script and left the tracking to the mark

> I’m not really sure what they were thinking. My guess would be that developers installed a single Google Tag Manager script and left the tracking to the marketing/analytics team. From that point they manage what third party scripts are added to the site, not engineers. This situation cases a tunnel vision which can unfortunately lead to situations like this.