In written English, "acumen by" is not a grammatically correct phrase.
It is possible that it is being used as a title or heading, but in a sentence it would need to be followed by a verb or preposition. One possible way to use it in a sentence could be: "The CEO's acumen by analyzing market trends led to the company's success." In this example, "acumen by" is followed by a gerund verb and demonstrates the way in which the CEO used their acumen.
He was respected and admired for his professionalism, character and business acumen by all his colleagues and friends.
Unlike real episodes of the reality show, Cabinet Apprentices did not have to prove their acumen by hawking T-shirts.
She also defies the perception that gifted musicians lack business acumen by managing her own career successfully.
He has followed that visionary acumen by borrowing some of those savings to pay for "Die Fledermaus".
In another scene, in which he is planning the country's Copenhagen strategy, he demonstrates his political and media acumen by hashing out a plan for tiny Maldives to get the world news media on its side.
Over the summer, when Mr. Obama called for striking at terrorist camps in Pakistan if the Pakistanis fail to do so, Mr. Biden questioned his foreign policy acumen by saying that he was describing existing policy.
Co-morbidity problems and other complex clinical situations can be solved by clinical acumen sharpened by experience, diligent review of the literature, appropriate interactions with colleagues, and obstinate perseverance.
Looks to me as if Facebook has been frozen frozen by Microsoft's brilliant business acumen, and by Zuckerberg's adolescent ego.
It was common during my grad-school years to see professors judging those who had risen to senior levels in administration not by their management skills or strategic acumen but by the heft of their CVs.
The House of Commons Committee on Culture later issued a report calling for the resignation of the entire management, explaining, "We would prefer to see the house run by a philistine with the requisite financial acumen than by the succession of opera and ballet lovers who have brought a great and valuable institution to its knees".
Cry too much, and you're too emotional, your intellect and business acumen clouded by emotion.
