I can't believe that anyone seriously contends that a closer sporting a 7.49 ERA and has by all accounts pitched horribly since the beginning of the season is an absolute lock to hold to the role.
History is riddled with one-time ace closers who just couldn't get it done anymore. Occupational hazard. There are freaks: Mo, Gagne, Eckersley, Hoffman ... but closers rarely have a shelf life of more than 3-4 good years. Just take a look at today's rosters.
I'm not by any means saying that this is the case with Foulke but it happens like clockwork.
I hope the guy who has Foulke in my league is as blindly enamoured with him. Does wonders for my WHIP, ERA and S standings.