Hill-Rom Holdings, a medical equipment manufacturer in Batesville, Ind., that had $1.4 billion of 2010 revenue, promoted Michael Macek to treasurer. He succeeds Mark Guinan, who was named CFO and senior vice president in December. Macek, 39, had served as Hill-Rom's executive director of treasury since 2008. Prior to joining the company in 2005, he worked for Ernst & Young and Guidant Corp., a medical device company acquired by Boston Scientific.

Gentiva Health Services, a $1.2 billion home healthcare services company, named David Gieringer chief accounting officer. He replaces Eric Slusser, who was promoted to CFO last year. Gieringer, 48, will continue to serve as the Atlanta-based company's controller and vice president. He has been controller since 2002. He joined Gentiva in 2000 as assistant vice president of accounting after working for 13 years in accounting at Olsten Health Services, Gentiva's former parent.

Papa John's International, a $1.1 billion chain of pizza restaurants in Louisville, Ken., appointed Lance Tucker CFO. He succeeds David Flanery, who is retiring. Tucker, 42, was most recently the company's chief of staff, a role he assumed in 2009. Earlier, he spent six years as CFO of Evergreen Real Estate, a firm owned by Papa John's founder, John Schnatter. Tucker worked in finance positions at Papa John's from 1994 to 1999, after starting his career at Ernst & Young.

Vitamin Shoppe, a $752 million retail chain based in North Bergen, N.J., named Brenda Galgano CFO. She replaces Michael Archbold, who was named president and COO. Galgano, 42, was previously CFO and treasurer at Great Atlantic & Pacific Tea Co. She spent 12 years at A&P and was named CFO in 2005. Earlier, Galgano spent almost three years as the grocery chain's controller. She joined A&P as director of corporate accounting in 1999 after working at PricewaterhouseCoopers.

Carlyle Group, the New York-based private equity firm with $98 billion in assets under management, hired Adena Friedman as CFO. She replaces Peter Nachtwey, who left last year to join Legg Mason as its CFO. Friedman, 41, was formerly CFO and executive vice president of corporate strategy at NASDAQ OMX Group. She began her career at the exchange in 1993, and held various roles, including director of product management and marketing manager. She was named CFO in 2009.

Federal Home Loan Bank of Atlanta, one of 12 district banks in the Federal Home Loan Bank System, appointed Kirk Malmberg as CFO. He succeeds Steven Goldstein, who is retiring. Malmberg, 50, has been the bank's chief credit officer since 2007. Earlier, he was senior vice president of mortgage products. Malmberg joined the bank in 2001 as senior vice president for asset and liability management after working for the Federal Home Loan Bank of Chicago and Lehman Brothers.

Willis North America, a Nashville, Tenn.-based unit of $3.3 billion Willis Group Holdings, the global insurance broker based in London, named Sharon Edwards CFO. She replaces Derek Smyth, who left in March to pursue other opportunities. Edwards, 45, has served as chief administrative officer for Willis North America since 2009. Earlier, she served as its North American controller and as regional finance officer for the company's midwest region. Edwards joined Willis in 1991.

Calix, a $287 million broadband communications company in Petaluma, Calif., named a board member, Michael Ashby, CFO and executive vice president. He succeeds Kelyn Brannon, who is stepping down. Ashby, 61, is coming out of retirement to resume his former role as Calix's CFO, a position he held from 2002 to 2008. Earlier, he was vice president of finance at Cisco and CFO at Cerent, which was acquired by Cisco. Ashby was also CFO at Ascend Communications and Pacific Telesis.