At least Hampton came in to Colorado on the heels of 3 seasons with a sub 3.50 ERA and GB/FB ratio over 2.50. If anybody was going to be worth good money in Colorado, Hampton was the guy. As for Ortiz, like the Milton deal, it stunk from the very start and everybody wondered what they were thinking.
Games are won on run differential -- scoring more than your opponent. Runs are runs, scored or prevented they all count the same. Worry about scoring more and allowing fewer, not which positions contribute to which side of the equation or how "consistent" you are at your current level of performance.
I've seen Russ Ortiz's numbers and the drop over the last two seasons is very interesting. Actually I'm seeing it all over the majors so whatever is wrong with him must be contagious. I suspect a bad case of anabolicitis.