Who will be a closer soon?

[CPHFighter1]

Some might say Jorge Julio, but I don't see the O's trading him if they are contending. If not, he goes to a team needing a closer.
David Riske. Really, how much longer can Bob Wickman last? If they do demote him, I think Riske gets it, not Betancourt.
Ryan Wagner. Cincinnati has stuck by Graves for a long time, but this guy is ready.
Solomon Torres. I could see Mesa getting dealt. His value is high right now, and Pittsburgh is not going anywhere any time soon. Gonzalez is a lefty specialist.
Huston Street. In a month, the A's will be out of it.

[CPHFighter1]

ouch, Wagner got ripped tonight.

[DominicanLou]

I think Julio, Urbina, and Street all have a good chance of being the closer somewhere by the all-star break.