The phrase "a master manager" is correct and usable in written English.
It can be used to describe someone who excels in management skills and leadership abilities.
Example: "In her role as a project leader, she proved to be a master manager, effectively guiding her team through challenges and achieving outstanding results."
Alternatives: "an expert manager" or "a skilled manager".
Once seen as a master manager who could serve as the bridge between the old media and the new, Mr. Pittman came to personify the failures of the AOL-Time Warner merger.
The governor has built his reputation as a master manager and bipartisan deal maker, and the Republican-led Senate has prevented him from facing the politically precarious choice of vetoing or signing more liberal legislation that would inevitably emerge from a fully Democratic Legislature.
Creating a climate of positivity and feedback around you is a marker of a master manager.
Jimmy Iovine, who worked with U2 as a producer before he co-founded Interscope Records, calls McGuinness "a master manager, someone who understands both the business of rock 'n' roll and the art of it". McGuinness has made sure that U2 has always had total creative control over its recordings and, since 1983, full ownership of its song publishing.
He inherited a strong squad and he is, quite simply, a master man-manager, coach and tactician.
Third, a master sales manager, bubbling over with ideas, originality, enthusiasm, pep, capable of inspiring the whole salesforce and of commanding their respect for his practical abilities.
There are more in-house developers at our enterprise customers than ever before," says Maria Colgan, a master product manager at Oracle, and she notes that they all need access to data and database services.
Becoming a master product manager takes time, practice, and perseverance.
That's the Way the Cookie, and by Cookie We Mean the Bulls, Crumbles Award — To the local NBA team for making discarded coach Tom Thibodeau look like the master manager he was and Fred Hoiberg more and more like a stockroom clerk.
In the Matter of Yucaipa Master Manager, LLC, Investment Adviser Release No. 5074 (Dec. 13, 2018), available here.
Richard Tedlow, a historian at Harvard Business School, calls him "one of the master managers in the history of American business".
