You are on the team single post and you are attempting to show posts in a category that are related to this post through a category. Not easy, and I cannot really do all the code for you.
CPT (team) => Categories (team selected here) => posts in categories
You need to do a reverse relationship query on the categories (taxonomy) to get a list of categories where the team is selected, very similar to this https://www.advancedcustomfields.com/resources/querying-relationship-fields/.
Then you need to do another query on for the posts that you want to show based on the categories returned in step 1.
