Here's feedback I got from a Series A founder after she read this post. Hope it helps you too!

"Your article came up on my LinkedIn feed and I wished it had come up months ago and saved me a lot of headache but late is better than never. We've been wrestling with gtm for months now and have made some progress but have yet to receive any high level advice as clear and structured as your article!

Thanks again for sharing the article!! It was great!! "