I just spent the past hour looking over the this season and last season. In particular, the margins of victory and defeat. A lot of people have jumped on the Indians pitching staff and, for the most part, this is reasonable. But further analysis of the numbers reveals some interesting findings, which I get into in a bit of detail over at my webpage
The post is too long to put here but I can say this much: Last season's problem winning very close games hasn't disappeared, it's just been hidden under a profound layer of terrible losses. If you are interested, check it out. Cheers.