NWSB Insider and Seattle Mariners blogger Jonathan Irwin reports on his list of offseason moves for the 2013 Seattle Mariners. The team is in a crossroads, looking to build off their strong farm system while staying competitive. While they have to sacrifice in some areas—such as keeping the rotation open—it’s time they sealed up old holes—such as the enigma at firstbase. Keep Jason Vargas and Felix Hernandez figure out Justin Smoak.