Yes - for a more collaborative workflow, you can use the Trello Slackbot (https://trello.com/platforms/slack) to interact with a board from Slack. It depends on how much your team wants to collaborate on these - I've also seen the bot go unused with people focusing on changing the cards directly in Trello.

Yes, I integrated it with slack. Using Power-Ups feature of Trello. Whenever there is an update from Trello. It submits message to my slack channel as well.

I'm not sure, if that's what you are looking for.