Make comments obvious

I’ve got an idea about making comments more obvious. In this current version, the comments seem hidden. If the team has a lot of people, it’s very difficult to see what’s really going on: Did it have new comments? Where they comment? I don’t have the feeling that I can take control. So I make 2 concepts of fixing the comment feature. Hope you love it and inspire you.
Concept A:

Concept B:


I like concept B more. It’s good for overview. They should show some snippets of comments.