It’s incredibly frustrating that only the user who created the collection can edit the permissions by default. If that user is unavailable then even the highest level admins are powerless to edit the collection.
Workspace admins should have full control over all collections in the workspace. Team admins should have full control over all workspaces in their team. Please consider changing this.
Hi @davepollock! Welcome to the Postman Community 
We do understand such needs and our engineering team is looking into such feature for our future roadmap. We have an open feature request below, so please add your comments to weigh in!
Please let me know if you have further questions 
Thanks for your response @taehoshino
I have voted on the github issue. I hope to see some progress on this soon.
Cheers.