The quote from the source quote is a good subject line. It is very simple and it gives a good idea to the reader what the article will be about. The second paragraph makes a good first impression as well. The first sentence does a great job of grabbing the reader’s attention and making him/her want to read the rest of the paragraph.
The first two paragraphs are solid. The first paragraph tells the reader what the article will be about and the second paragraph tells them how to increase sales product marketing. In addition, it gives examples as to where they can use product marketing, which will make it easy for the reader to understand.
The third paragraph is wordy. The sentences are too long and there is no need for all of those commas, especially in the few sentences before the quote. I would recommend cutting out a few words and using shorter sentences that flow better.
The last paragraph is by far the best paragraph in the article. It summarizes everything that was said in the article and does so very effectively because it states everything briefly and clearly. The reader will not be confused about this because they will recall what was stated in the body paragraphs and this will help them remember what was said.
Overall, this article is good. There is room for improvement, but overall it is good and it meets the requirements of the prompt perfectly.