We had more than 500 pages indexed, we are a relatively new site but I think we have good content so Google was ok with our pages.
Most of this pages were profiles and had a url structure like /place/place/work One of our engineers changed the url structure and with that, updated the sitemap.
The old url's starting throwing 404 because he didn't put any 301 redirection to the new ones and Google was not happy at all about this.
Google de inxeded most of the pages and now we have only 75 indexed and 10 of them are profiles.
This engineer was obviously at fault, but 2 weeks have passed and our indexed pages are still 75.
Any tip on this? We have put a lot of effort for this pages to be seo friendly but it seems google dont trust us anymore :(