The Tigers kept Anibal Sanchez. They almost certainly overpaid (5 years, $80 million), but they kept him. And that means yet another AL Central rotation improved.
The Royals added Ervin Santana, kept Jeremy Guthrie and traded for James Shields and Wade Davis.
The Tigers have Sanchez, Doug Fister, Max Scherzer and, of course, Justin Verlander.
The White Sox have Chris Sale and Jake Peavy at the top of their rotation.
All of which is a very short way of saying: competing in 2013, if you are the Twins, keeps looking tougher and tougher.