@Alvaro Marin Perez You could have a single board where tasks are created which is team viewable but which people are not members of. Your boss can creates cards there, and then when he adds a label with someone's username a linked card is created in their board. When they archive the board, a comment is posted on the source card letting your boss know the work is completed. This could be done using Butler. Here's an example of the first part of the command:
Then from each person's board, you have a command like this:
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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