https://forum.wordreference.com/threads/cant-cut-the-mustard...

Can’t Cut the Mustard
When you use the expression ‘Can’t Cut the Mustard’ you mean that someone is unable to succeed or meet expectations.

Example of use: “I really like Jake, but he just can’t cut the mustard.”

Interesting fact about Can’t Cut the Mustard
The phrase ‘can’t cut the mustard emerged in America at the end of the 1800s. The earliest printed example comes from an 1889 edition of The Ottowa Herald: “He tried to run the post office business under Cleveland’s administration, but “couldn’t cut the mustard.” The use of quotation marks indicates that the phrase was already a common one.

https://www.gingersoftware.com/content/phrases/cant-cut-the-...

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Note added at 27 mins (2022-05-20 23:25:34 GMT)
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(02 de Diciembre, 2015).- El presidente nacional del Partido de la Revolución Democrática (PRD), Agustín Basave, calificó al gobierno de Enrique Peña Nieto en sus primeros tres años como “corrupto”, “malo” e “inepto”, el cual no es capaz de “sacar un perro de una milpa”.

https://revoluciontrespuntocero.mx/corrupto-malo-e-inepto-el...

As with many slang and idiomatic phrases, the origin of cut the mustard isn’t so … clear-cut. But, let’s see if we can’t crack this etymological jar open just a bit.

What does “cut the mustard” mean?
To cut the mustard is “to reach or surpass the desired standard or performance” or more generally “to succeed, to have the ability to do something.” For instance, Beyoncé really cut the mustard in her new song.

Most often, the phrase is used in negative constructions for when something doesn’t live up to expectations or can’t do the job, e.g., The quarterback couldn’t cut the mustard in the playoffs.

When did we start saying “cut the mustard”?
Cut the mustard appears to be an American original. Evidence for the phrase can be found in a Galveston, Texas newspaper in 1891–92.

The author O. Henry—who spent many years in Texas, where he may have picked up the expression—used cut the mustard in his 1907 collection of short stories The Heart of the West: “I looked around and found a proposition that exactly cut the mustard.”

What is the origin of the word mustard?
The word mustard itself goes back, via French, to the Latin mustum (English must), which was an altogether different substance. It was the juice squeezed from grapes before it was made into wine. Mustard is so named because the condiment was originally made by making mustards seeds into a paste with must.

What does mustard have to do with excellence?
It’s not clear exactly why we say cut the mustard. Some have proposed literal derivations, such as cutting down (harvesting) mustard plants. Others have suggested connections to the phrase pass muster, when a solider gets approval after troops are assembled together for inspection. Evidence for these origins are wanting.

https://www.dictionary.com/e/cut-the-mustard/

Tu no sirves ni para sacar un perro de una milpa.
You're not even good enough to retrieve a dog from an open field.

https://context.reverso.net/translation/spanish-english/un p...

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Note added at 1 hr (2022-05-20 23:59:15 GMT)
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Glad to be of help. I've also learnt something new, which is always a good thing :-)