You hate to see a young stud pitcher like Michael Pineda go, but even with this loss, the Mariners' 2012 rotation isn't exactly in shambles.
Anytime Felix Hernandez is your ace pitcher, your rotation is going to be better than 40% of the teams in the league. Even if your other four pitchers are just average, you're still going to have an above-average rotation with King Felix at the top.
Several new pitchers have arrived, including Japanese sensation Hisashi Iwakuma.
With the departure of pitchers like Doug Fister, Erik Bedard, and Michael Pineda this 2012 rotation will look completely revamped.