Yeah lets get Erstad for his versitility because he had a 60 OPS+ last year. Nothing like getting a guy who can hit with an OPS just cracking .600. Erstad is a waste of a roster space, Hinske's OPS last year was 113. Hinske is basically a platoon player at this point, he had a .896 OPS vs. righties last year. Thats more valuable than anything Erstad could add to the team. Its really not even close that Hinske is worlds better than Erstad at this point.
As for the #2 hitter, Youk is ideal with Drew being a solid option as well. Drew is a better fit for the #5 spot in this roster IMO though. Drew would make a better #2 than Youk but the Sox need an upgrade at the #5 spot and no one else fits that besides Drew.