"The 76ers, a week away from the start of training camp, are without a vice president of marketing.A source confirmed that the team let marketing VP Eric Blankenship go sometime in the last 2 weeks.As to why, Sixers publicist Mike Preston would only say: "We don't discuss personnel decisions in the front office. That has been our policy."As to how the team proceeds until a new marketing specialist is chosen, Preston said: "Everybody picks up the slack. There's a job to be done, and the common goal is to get the job done the best we possibly can."Blankenship declined to comment.Blankenship was hired in July 2007. From Tampa, Fla., he had spent 5 years working for Global Spectrum, the public assembly facility management subsidiary of Comcast-Spectacor, the Sixers' parent company."