Q: Should I Upgrade to the New Google Analytics Collections Script Called the Global Tag?
The new collection snippet is used across AdWords and Analytics with one tag.
That may seem like a clean solution but actually, the tag is a streamlined version of Google Tag Manager – without the ability to add more tags or control deployment. Unfortunately, GTAG.js is also not compatible with advanced features like Custom Tasks or external libraries like AutoTrack.
The Global Tag is a great solution for small businesses that are just starting in Digital Marketing. However, all other companies should be using Google Tag Manager to deploy Universal Analytics, the last iteration of the collection snippet.