The Mets should have Jacob deGrom and Noah Syndergaard available in trades, set a $1.50-on-the-dollar price and see if the Yankees, Braves, Astros, Padres, etc., are willing to overpay.

The fade of Matt Harvey, the recent injury of Zack Wheeler and the record over the past two and a half seasons (37 games under .500) should emphasize how fragile building around starting pitching is, especially when the rest of the infrastructure does not support it. Namely, the Mets put forward the rotation as their strength, failing to appreciate that run prevention involves so much more than that, including defense, organizational pitching depth and rock-solid/diverse bullpens.

But the Mets are not considering moving deGrom and as of yet do not seem motivated to deal Syndergaard. If that is the case, then why trade anyone? Why not simply hold onto the current group and see if one of Fred Wilpon’s old mandates — to play meaningful games in September — can be achieved?

This is not about believing the Mets have a great playoff chance — even after winning four straight through Wednesday, the Mets were given just an 8.7% postseason likelihood by Fangraphs and 3.4% by Baseball Reference.

This is about what kind of return is possible for an injured Wheeler, Jason Vargas and Todd Frazier. Which is not much.

If this is going to be just a money dump, then shame on the Wilpons and they deserve every slight about cheapness hurled their way. And if this is about just acquiring more Eric Hanholds and Jacob Rhames, then what is the point? You might as well take that 3.4-8.7% opportunity.

If the Mets were well run — and they are far from that — then make some lottery-ticket trades. If you trust the scouting department, then deal any of the three potential walk-year guys for some low-minors piece that is crude and far away, but if it hits, it hits big. Remember, the Padres not long ago turned James Shields into a young White Sox infielder who had yet to even play minor league ball: Fernando Tatis Jr. If you trust your analytics wing, then see if any of the three or Justin Wilson can be flipped for the equivalent of Luis Cessa and Chad Green, which is what the Yankees — based on their analytics — got for Wilson after the 2015 season.

But unearthing outside gems has not been a specialty of this organization. So why not see if this group, which the organization believed so much in to open the year, can work back into a wild-card race filled with mediocrity and significantly flawed teams?

Plus, the Mets are not in rebuild mode. They are again going to try to win next year. So if they are able to retain Wheeler and Vargas for around $26 million for 2020, which they can only do if they hold onto the two starters now, then why not try that?

The Mets, if they truly believe Wheeler is healthy, can put the qualifying offer on him. The current belief is the qualifying offer will stay similar to last year’s $17.9 million or even go down for the first time. Wheeler would have to seriously consider accepting after seeing how chilled the market was for non-elite players who went into last year’s free-agent market tied to the qualifying offer draft compensation. If Wheeler accepts, he is a signed player and the Mets can keep or market him, just like deGrom or Syndergaard.

Vargas has an $8 million 2020 option with a $2 million buyout, so it is a $6 million decision on whether to keep him. There was a rush to say “no way” a few weeks back when Vargas had a public confrontation with a reporter. But where are the Mets finding a league-average-type starter (Vargas has a 3.68 ERA in 24 starts dating to last August) for $6 million? Better to keep the depth with Anthony Kay ready at Triple-A, especially because rotation depth has been such a killer for this team.

Frazier is the easily replaceable piece for 2020, through a combination of J.D. Davis, Jeff McNeil and — don’t laugh — possibly Jed Lowrie. For now, though, Frazier is providing competence on both sides of the ball. That does not get you much in the trade market.

And if, for example, the Phillies are not going to surrender much for Frazier, the Angels for Vargas and the Brewers for Wheeler, why not just play this out, rather than performing a fan-angering salary dump for minimal prospect return? Maybe Wilpon gets a meaningful September. Perhaps this is the year an 8.9% chance pays off.