Hi J.P., you've received some solid advice from Bob. Like he said, though, it is difficult from the example given to tell if your suggested approach is solid. However, detailed answers to these 2 questions should help us get a clearer picture of the situation:
1. Why do you think the existing URL structure is a poor one?
2. Why do you think the proposed one would be more effective for this particular site in terms of SEO performance?
And, of course, if you are able to provide examples of URLs that provide a bit more detail (and show any differences between the existing and proposed URL structure beyond the addition of a subfolder), that would be great, too!
Looking forward to hearing from you,
Christy 
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