When it became clear to Jason Isringhausen last September that he was simply physically incapable of doing his job, he knew it was time to shut things down for a while. The day after his last successful outing of 2006, Isringhausen endured his last unsuccessful one. Soon thereafter, he called it a season and underwent surgery to correct an agonizing hip condition. "I threw that one day in Washington [Sept. 5] and got the save," Isringhausen said, "and the next day, I went out and started warming up, and I was like, 'Oh boy.' That's when I knew. "I can deal with criticism and I can deal with booing. The time when I decided to quit was when I decided I wasn't helping anymore. I was doing more harm than good."