Pilots use checklists before they take off. Surgeons use checklists before they operate. Checklists are a good idea, and copy editors might well benefit from them.
Mignon Fogarty, the indefatigable Grammar Girl, has introduced a checklist for editors that you are well advised to take into consideration.
But The Old Editor fears that in your attention to individual trees you might lose your way in the forest. Thus, in addition to Grammar Girl's micro-editing checklist, you might benefit from The Old Editor's macro-editing checklist.
If the opening is a summary paragraph, does it say one thing clearly and directly?
If the opening is an introduction leading to a summary paragraph, is the opening short? Does it fit the subject? Does the summary paragraph say one thing clearly and directly?
Does the rest of the article match the opening? Are there elements in the opening that are not developed in the article?
Is the structure of the article (narrative, expository, inverted pyramid, etc.) appropriate for the subject and occasion?
Does the article get to the point immediately, without throat-clearing and tedious exposition?
If you made an outline of the article, would it show a series of subtopics clearly related to the focus? Do you see transitions from one subtopic to the next?
Is background information integrated smoothly, placed where the reader will most require it?
If the article is chronological, is the reader clearly oriented in space and time at every point?
Does the article conclude merely than trailing off? Does the conclusion in some way reflect the elements of the opening so that the reader is left with a sense of completion?
How much better would it be if it were shorter?