I would think that no matter how much you believe in DIPS and projection systems, both Arroyo and Harang have shown that DIPS just doesn't work well in projecting their performance for long enough, that a reasonable person would at this point have to admit that they can't use DIPS to accurately to predict these guys future performance.
This reminds me of a friend who to this day is convinced that The Jam would out sell Journey if just given the same breaks. No matter how much you believe that the Jam is a better band, or even a more commercial band, at some point you have to concede that Journey is always going to outsell The Jam. The actual results are just too strong to ignore.