They have some "category" type pages on their website, such as this one about "family law".

http://www.stockandleader.com/personal-law/family-law

This page only has a yada yada yada paragraphy on it.

These pages would become much stronger in the SERPs for industry category keywords, and a useful starting point for visitors, if all of the blog posts for that legal category were linked to from these pages.  These types of pages can serve as gateways to the expertise areas of the firm if they link to all of their related content.

** redirected with a 301 in order to do not lost keyword rankings?**

If you redirect, you are probably going to lose most of those rankings and traffic because those pages do not exist on your site anymore and it was the pages that qualified you to appear in the SERPs for those keywords and the content that earned your rankings.

If those keywords and their traffic are still important for you, then create a new page with a new article that suits you, optimized for those important keywords and redirect there.  A better way would be to simply post new content on the currently existing page.   Those are the best ways to hold traffic when you don't want to continue with certain content.

We have often changed our mind about content and done complete rewrites in the original URL.  Works great.

Are these pages pulling in any traffic?   Can you trace that traffic through the shopping cart?

If it is possible to add the analytics code to the pages, I would do that and let it run for a couple months.  Then you can make the decision with full data.

The content, both text and images, must be absolutely unique and not exist anywhere else in printed or digital form.  Content that has bee rewritten, paraphrased or complied from existing sources will not be accepted.  All rights to the content will be assigned to us and it may not be resold or used to produce derivative works.

I would one-up them with valuable evergreen content that will impress or help current and potential clients - rather than a press release that will launch, sink and be stale.

Everyone has their opinions about these things.  I am not going to give an opinion, I'll simply say what I do.

1. you have a slightly irrelevant article to your website topic, low conversions, but a lot of quality links to page, but no primary keywords in article title.

I prefer to have mostly content on a site that is closely related to the central theme of the site, but I don't mind having slightly, or moderately, or highly unrelated content on my sites - especially if it attracts visitors - and if it attracts visitors I don't mind having quite a bit of that content on the site.  I monetize it with ads and if it attracts links I enjoy the linkjuice.   I know for a fact that some of these visitors buy stuff, and know for a fact that they go onto other pages of the site that are in the central theme.

Bottom line... I would keep the article that you describe.  I might improve it if I can so it will attract more links and more traffic.  I would slap a couple of Adsense units on it and block my competitors ads from appearing.

2. You have a slightly irrelevant article to your website, low conversion, but a lot of quality links AND you have your site's primary keywords in article title

This is kickass.  Make more of these if you can.

3. You have a relevant topic to the site, but low engagement and low conversions.

Sometimes articles like this are extremely valuable for visitors and past customers.  If it is a page that says how to repair an item that you sell then it is valuable, if it is low effort to produce make more of them.  These articles can attract links.

There are many ways that slightly irrelevant articles can be valuable.  I have totally irrelevant articles that attract a lot of traffic, make a lot of ad money and produce a few conversions.  Low engagement, low conversions but huge links and huge ad revenue.  I am always looking for these opportunities.

I previously gave an opinion on this here....

https://moz.com/community/q/how-to-handle-annual-content-2018-2019

If you have a kickass price, SHOUT it in the <title>tag.</p></title>

But what about if I am the 1 st one to publish the content online. How can they take over even if they are stronger than me.

If a much more powerful site takes your content then you have greater than a 50% chance of losing traffic, both short and long tail.

If a lot of pissant or even spammy sites grab your content then you have greater than a 50% chance of losing traffic, both short and long tail

The site where I have my greatest problems with infringing content causing problems is a site that most people would consider to be a "heavyweight".

Being "first to publish" means very little from what I have seen.

Has google though about something ?

I know that Google thinks and says that they are pretty good at recognizing who content belongs to.  In my opinion, they are not nearly as good as they think and say that they are.

Most people only realized that their content is being stolen when the thief uses it verbatim.  But the more dangerous thief is the light rewriter.  And that thief is a lot harder to catch and a lot harder to kill with DMCA.

I never use more than a 301 redirect.

Perhaps using Google's suggested methods will cut the wait.  I try to conserve on labor,

Questions received from customers by email and phone are the most important driver of the content plan.   At the same time, you must know the products well enough that you can identify the things that the customer needs to know, but is not asking.

We pay no attention to content length, other than telling enough to convey the information.  I bet we don't have a single 3000 word article on our retail sites.

On a lot of my pages, I have an

title at the top, often with

below it.   Below them, spanning the entire width of the page, I will have a wide format image with a relevant caption.  I think that it is important for the visitors to have an interesting image at the top.  If I don't have one spanning the entire width of the page, then I have my best image at top of the right column.  We often spend good amounts of money on these article-opening images.  We also use these images on category pages and recommended readings lists to advertise the articles to all visitors of the site.

Verbatim articles on a website can often outrank the original source, especially if the original source website is not very strong.

If they do it with my content, I will probably file a DMCA with Google and perhaps with their host.

If they are taking your original content it can be illegal if...

1. they do not have a case for fair use

2. you have not done something to make your content available for other use (such as make it public domain, creative commons, etc.)

Copyright infringement is covered by Federal statute in the United States.  If your content is registered you might have a case to sue, even if no financial damage is suffered.  It can be considered criminal if the infringer is knowing and willful.

I am not an attorney.  I recommend consulting with one if you have copyright problems.

I have done my due diligence and regularly file DMCA's, send informal take down notices, and have my attorney handle situations that might be complex or are against an infringer of note.

You can buy traffic, every day, every day, every day.... you will paying until eternity.

Or, you can create content that "WINS" traffic... and instead of you paying you will be earning.

And, that content will earn traffic every day, every day, every day.  The cost of content that earns traffic is cheaper in the long run than paying for traffic.

I am creating content today that will start earning this week.  It will still be earning for my family after I am dead.

Chris links to a lot of moz content.  The one that I like best is a Whiteboard Friday by Rand.

https://moz.com/blog/seo-photos-visuals-graphics-whiteboard-friday

Pay special attention to   K)   (note that he explains it before he points to it)     K) is all about having great organic rankings in websearch for the keywords that you want to appear for in image search.

The specific page has.....  >500 domains linking to it.

This is rocket fuel.   Irrelevant articles help lots of websites.

Find the person who wrote that article for you and give them a really nice gift.

Ask them to write another article about plants in the office.

Ask them to come up with some great photos of plants (that you are legally able to distribute as screensavers, branded lightly with your domain) and give them to people.

Advertise the new article about plants on the popular page, advertise the screen saver on your popular page.

I don't think that you are going to kill a software giant with irrelevant articles but I believe from experience that they can be very helpful to your rankings.   Plus, we make a few sales every month to people who landed on our website to consume irrelevant content - and the products that we sell are irrelevant to the content and damn few people want what is sold on that site.