I have authored my first paper for a journal. I talked to some co-authors, hoping that they would help me with the design and intellectual work, but eventually their contribution has been minimal. I was not bold enough and they did not help. They don't satisfy the ICMJE authorship recommendations, since they have only provided manuscript review (http://www.icmje.org/recommendations/browse/roles-and-responsibilities/defining-the-role-of-authors-and-contributors.html), and provided limited feedback, and allegesly-impressed praise. All the design, and hundreds of hours of work is mine. They did not provide institutional or financial support and they are not my bosses or leaders.
Should they be excluded from the authorship? Do journals prefer a "well-published" teacher as the co-author of a paper?
I believe it would be overly fair to include them as acknowledgements, but I'm not sure what to do.
How do you suggest this "bad news" should be delivered to them? I really struggle with communication.