AMN Healthcare Services, a San Diego-based healthcare staffing company with $1.2 billion in revenue, has named Bary Bailey CFO. He succeeds David Dreyer, who is leaving the company. Bailey, 50, previously served as CFO and executive vice president at Valeant Pharmaceuticals International. He has also served as executive vice president of strategy and technology at PacifiCare Health Systems.

EarthLink, an Atlanta-based Internet service provider with $955.6 million in revenue, has appointed Bradley Ferguson CFO. His predecessor, Kevin Dotts, will remain until September to ensure a smooth transition. Ferguson, 39, joined EarthLink when it merged with MindSpring Enterprises in 2000. He has served as controller since 2005 and earlier was vice president of commercial finance.

GenCorp, a Sacramento, Calif.-based defense manufacturer with $742 million in revenue, has named John Joy treasurer and vice president. His predecessor, William Lau, is leaving to pursue other interests. Joy, 47, most recently was vice president of treasury and finance at Aviza Technology. Earlier, he served as vice president of treasury and tax at Maxtor Corp. and assistant treasurer and director of global treasury operations for Flextronics International.