The Stream tiles don't allow you to see the full email or program name when adding content to the the Engagement Stream, which can make the odds of chosing the right content (especially emails in programs) pretty low. Plus even after you've chosen it, the full name is cut off, so you still can't be sure that it is correct. And you can't delete the conent if it is incorrect. See screen shots below. The UI needs to provide the ability to view the full name of the content before and after selecting it.