Craig Hansen called up

Reliever Craig Hansen has been called up from Pawtucket to fill Brandon Moss' spot on the roster.

However, I dont really understand this move. The bullpens not doing that bad, and the starters having been lasting at least 6 innings lately. So, i dont understand why we need another reliever. With Moss out, dont we need more outfielders? Supposedly Coco not fully healed, and what if something was to happen to another outfielder? Then what would we do? I thought that they would bring up Thurston, he may not be a great hitter, but hes an outfielder. And i understand that Lugo can play outfield, but i read in an article that he said that he doesnt want to because he feels uncomfortable in the outfield because thats not where he belongs. But ahh, i dont know. If only Epstein asked me for my advice on the matter! Haha.