Berkshire Partners LLC named Carol Vallone and Chuck Ball advisory directors.
The new hires will help the Boston-based middle-market private equity firm look for new investment ideas and advise its portfolio companies.
Ball, who is also a partner at Gaderian Wines, was most recently the senior vice president of distribution services at AmerisourceBergen Drug Corp.
Vallone is the chairwoman of the board of trustees at Mclean Hospital and was president and CEO of WebCT Inc., Wimba Corp. and Meteor Learning Inc.
