Pumpkin spice lattes aren't the only addition brewing this fall at Starbucks Corp. (SBUX) .

A few months into the tenure of new CEO Kevin Johnson, Starbucks announced Wednesday, Sept. 6, a new chief operating officer: former Sam's Club CEO Rosalind Brewer.

Brewer joined Starbucks' board this year, shortly after announcing her resignation from Sam's Club, Walmart Stores Inc.'s (WMT) warehouse store chain. Under the terms of her departure, Brewer was prohibited from working at a Walmart competing business, which the company described as "any general or specialty retail, grocery, wholesale membership club, or merchandising business," with revenues over $5 billion within two years of her departure. Before joining Sam's Club and Walmart, she was an executive at Kimberly Clark Corp. (KMB) .

"As a passionate customer of the brand and recently elected board member, I have a deep love and admiration for the Starbucks brand and its people," Brewer said in a statement.

Beginning Oct. 2, Brewer will be based in Seattle and report to Johnson, who said in a statement that he "deeply value[s] her insight, business acumen and leadership expertise."

Johnson took the helm of the coffee giant on April 3, replacing legendary CEO Howard Schultz, who currently serves as executive chairman.

Brewer also serves on the board of Lockheed Martin Corp. (LMT) and previously was a director at Molson Coors Brewing Co. (TAP) .

Starbucks shares rose 0.2% to $55.24 in Wednesday morning trading. Shares are down 0.7% year to date, while the S&P 500 has risen 9.8% during the same period.

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