Brightstar Corp., a $5.7 billion Miami-based wireless distribution company, appointed Thomas Seifert CFO and executive vice president. He replaces Dennis Strand, who was named president of a new unit, Brightstar Financial Services. Seifert recently was CFO and senior vice president at Advanced Micro Devices. Previously he was CFO and COO at Qimonda, where he played a role in the company's IPO. Earlier he was group vice president and general manager of the memory rroducts group at Infineon Technologies and CEO and COO at Wireline Communications.

JetBlue, the New York-based U.S. airline with $4.5 billion in annual revenue, appointed James Leddy treasurer and vice president. This position was previously held by Mark Powers, who is now JetBlue's CFO. Leddy, pictured at left, joins JetBlue from NBCUniversal, where he was senior vice president of treasury and cash management. Earlier, he worked at General Electric, Measurisk and the Industrial Bank of Japan.

Henry Schein, an $8.5 billion healthcare products and services provider in Melville, N.Y., named Carolynne Borders vice president of investor relations. Borders recently served as vice president of investor relations and corporate communications for a semiconductor products design company. Earlier she was a senior associate at the Financial Relations Board. She was also co-founder and executive vice president of LI Invest, a former not-for-profit organization in Long Island, N.Y.