I don't think the unabalanced schedule helps here.
I mean, I will be pilloried for saying this, but some of these awesome closers are closers for a reason.
They are great at what they do, but they don't have the variety that the starters do, they just have a dominant pitch or two. But, part of their effectiveness is that they don't have to go through the lineup usually. their effectiveness derives from their nasty pitch and seeing them infrequently. It is hard to get a bead or a book on the good ones like rivera.
But the sox have seen him an awful lot lately.
I think he will be allright. If he isn't a "proven' closer, they may was well not apply the term to anyone. I think he is deteroriating slowly, he has been seen a lot. But some of this has to be just bad luck too.
If it happens again, I am trading for him.