I'm no mathlete but really what are the odds of something happening to all 3 players, if the percentage of it happening to each of them is 29%, 26% and 24 %(even if those numbers are accurate)?
Or even better, 1%, 3%, 7% individually, but again to happen to all 3? Seems pretty low to me.
And as greenwood pointed out, what degree of collapse? It doesn't take a rocket scientist to say that a pitcher who is 38 pitching in a pitchers park with 1 trick pitch who outperformed his peripherals might not pitch quite as well the next year in a hitters peark facing way tougher competition, but did anyone really expect close to 5 ERA for most of the season? No. Anyone who tells you that is pulling s*** out of their ass.
Izturis going from 2 WAR in 2011 to -2.2 WAR is not really a standard age curve for 31-33 either.
To say that the level of crapitude from every single person on that list was foreseeable is pretty much ludicrous.