Aren't themselves predictors of how long/when someone might get injured, but just a predictor that they will get injured.  Kuo's not listed, but he would definitely be in the Red.  Not much is said about Schmidt, but you have to be pessimistic about his odds of contributing.  I just read that his arm is sore again, and he stopped throwing for a week.  I'm not really expecting anything from him this season, so anything we do get is gravy.  Two interesting, and disconcerting warnings are Martin, who's in yellow, due to his already heavy workload, and La Roche, who's a red because of his injury history and his back is that bad.