Are you worried about the Yankees bullpen?

I am concerned about the Yankees holding leads. I am thinking to myself and I don't know how everyone else feels, but I can't quite figure out how this team has the best record in baseball. When you consider most of our bullpen is filled with ERAS of 6 and 7 it make me wonder how we are surviving this without having a worse record than we do. What do you think the solution is to this. Should they call up Romulo Sanchez or Ivan Nova and see what they can do. I think that is the key, we need to give different guys tryouts and just hope we catch lightning in a bottle. I just don't see this bullpen getting the job done unless we explore other options and that doesn't mean Alfredo Aceves because he is more or less a swingman.