Oz im not seeing your point here..
You cant sit here and predict when hes gonna blow a save, but what you can see is that he hasnt blown one in a while now and has been getting the job done.. so why take him out when theres no problem??
Yes he has been erratic, but he gets the save none the less
I cant answer your question about how many, but I have nothing to worry about until he actually blows another save... for all you know he may go 30 for 30 the rest of the year.. who knows... well have to see but what I do know is he is saving games, thats all we ask of him