You can say that about the left handed pitcher too. Why can't the left handed pitcher get lefties out? He's getting paid millions of dollars. Hell it's in his job description.
I get it B, I see no harm in picking up guys if you have the room to give them a try. For example, we picked up this Nelson guy, I have no idea whether he is any good or not, but all it cost us was Cousins. No harm, no foul.