NCTA has settled on a new exec dir for the Walter Kaitz Foundation just in time for the organization’s annual fundraising dinner in Sept. David Porter, Howard Univ School of Business dir of graduate programs, is taking the role. — Imagine Comm named Jamie Howard pres/CEO. — Discovery Nets promoted Fred Norris to vp, sales, southeast sales region. – – C-COR appointed Roger Sherwood vp, service and development, global on demand and OSS. — Simple Star tapped former AT&T Broadband/Comcast exec Don Schena as svp, PhotoShowTV. — Kay Johansson was named CTO for MobiTV. — Cox appointed Mark Williams vp, technical operations, and Catherine Mitchell vp, field operations.