The Washington Redskins have signed wide receiver D.J. Hackett and defensive lineman Michael Marquardt. In addition, the team waived/injured wide receiver Roydell Williams. Hackett was a fourth-round pick (157 overall) of the Seahawks in 2004, where current Redskins Head Coach Jim Zorn served as the team?s quarterbacks coach through 2007. Following four years in Seattle, Hackett was signed as an unrestricted free agent by Carolina, where in his lone season he played in nine games with two starts.