Nancy Tengler of Laffer Tengler said she's happy to still own Starbucks under new management, but said the name is being axed. Starbucks sent shockwaves through the business world on Tuesday when it announced that Chipotle CEO Brian Niccol would succeed Laxman Narasimhan in the same role at the coffee chain . While Starbucks shareholders and Wall Street are rejoicing, it's a double-edged sword for Tengler, who owns both stocks. “Investing is like being in a perpetual state of dissatisfaction,” Tengler said on CNBC's “The Exchange.” “While I cheered Brian's move to Starbucks this morning, I mourn the loss of Chipotle.” Trading Tuesday On the same day, Starbucks’ stock price soared by more than 20%, with huge trading volume. Chipotle, on the other hand, fell more than 9% in midday trading. Chipotle was included in Tengler's 12 Best Creations. While the CEO said she'll have to consider how to change the way she invests in these stocks, she noted there's a good reason Chipotle is “outperforming.” Since Nico took the helm of Chipotle in March 2018, the stock has soared more than 770%, making it one of the best-performing stocks in the S&P 500 during that time. CMG SBUX 5Y mountain Chipotle vs. Starbucks, 5 years For Starbucks, she calls the change “fantastic” as the Seattle-based company hires a leader with extensive experience in digital and online ordering transformations . Now with a strong CEO and a solid brand image, investors should soon start to see margin improvements, she said. To be sure, Starbucks investors have had a hard time getting to this point. As of Tuesday's open, the stock was down about 22% from when outgoing Starbucks CEO Narasimhan took over in March 2023. “I'm glad we have it,” she said after learning about the Starbucks news. “It's tempting to sell, that's for sure.” —CNBC's Robert Hum and Tom Rotunno contributed to this report.