Who will replace Ben Sherwood as executive producer of ABC’s Good Morning America? One person in the running is Tammy Haddad, the executive producer of MSNBC’s Hardball with Chris Matthews, TVNewser has learned. When contacted this afternoon, Haddad said she couldn’t comment.

Her former jobs include EPing Larry King Live and serving as senior broadcast producer of The Today Show, among others. Here’s more.

That’s not the only name rumored for the GMA EP job. “Word around here at NBC News is that Neal Shapiro is the frontrunner for the GMA Exec Producer job come this fall,” a tipster writes. The former NBC News president and Dateline EP, who said “it’s time to move on to a new challenge” last September, now teaches at Tufts and Columbia…