I never said that pitchers with declining k ratios would get better with age. I don't think it is necessarily a precursor of ineffectiveness. Many pitchers have had declining k rates and remained highly effective for a number of years. A few would be Tiant, Catfish Hunter, Palmer, Seaver, Sutton, Rick Reuschel. Also, you are pointing to half of a year as a trend in decreased k ratio and whip. Half of a year is hardly a trend.