It’s just not enough for OCLC to grab up good software, create cool new tools, and be the behemoth of the library world; they have to snatch up some great librarians to go along with it! Last month, Karen Calhoun, senior associate university librarian for information technology and technical services at Cornell University Library, left her post to become vice president for OCLC WorldCat and Metadata Services. Yesterday, it was announced that Roy Tennant will be leaving the California Digital Library (CDL), where he has worked since 2000, for a new position at OCLC. Tennant will be senior program manager …