Sharks Add Phillip Sinn and Keep Building the Blue Line

San Jose keeps working the margins, and these are the kinds of moves that usually tell you a front office still sees unfinished business. Phillip Sinn arrives as a defenseman the Sharks clearly want in the mix, which means the organization is still sorting out who fits now and who fits later. These signings rarely grab the national spotlight, but they can say plenty about how a team wants to shape its depth chart before the real roster battles tighten up.