David Cameron writes: Along with the Reds placement, this is the one that I expect to ruffle the most feathers. The D’Backs were one of just six teams to get 1,000+ innings out of their rotation last year, and with Kennedy and Hudson at the front end and Bauer and Skaggs on the way, it’s not like there’s age related decline to worry about. But, in reality, the D’Backs staff just overperformed last year relative to their talent levels, and ZIPS expects some real steps backwards in 2012. Replacing Collmenter and Saunders with the young kids could lead to some real improvement, but Arizona doesn’t have as much depth here as they think, and their front-end guys aren’t as good as their performances last year made them look. There’s certainly potential for a really good rotation in Arizona, but it might come in 2013 instead of 2012.