While some enthusiasts will argue otherwise, there’s usually not a lot of change from one year to the next in baseball. Most pundits expect the Yankees, Phillies, Red Sox, Angels, Cardinals, Twins, Dodgers and Rockies (all eight teams that made the playoffs in 2009) to be good again this year. MLB isn’t like the NFL where teams make unexpected playoff runs every year.

That said, that doesn’t mean there aren’t a couple of sleepers to watch out for in 2010. Below are five clubs that didn’t make the postseason last year that have the best odds (in my estimation) of making the playoffs this season.

1. Chicago White Sox
If you read the 2010 MLB season preview, you’re not surprised to see the White Sox at the top of this list. As long as Jake Peavy stays healthy, Chicago arguably has the best starting rotation one through five in the American League. (Boston fans may argue otherwise, but Boston fans can also shove off…just kidding…although not really.) But the key to the Chi Sox’s success this season lies in their offense. Yes, I’m banking on veterans Carlos Quentin, Alex Rios, Mark Teahen, Paul Konerko and Mark Kotsay to have productive years and yes, that may be asking a lot. But Gordon Beckham looks like a star in the making and the addition of Juan Pierre gives the Sox a solid leadoff hitter. I’m well aware that Chicago could finish third in a three-team race in the AL Central, but their pitching is going to keep them competitive all season and I’m willing to bet that their offense won’t be as bad as many believe.

2. Seattle Mariners
The Mariners have all the pieces in place to not only compete for the AL Wild Card, but also unseat the Angels in the AL West. Along with Felix Hernandez, the acquisition of Cliff Lee now gives Seattle the best 1-2 punch in the American League outside of Boston’s Josh Beckett and John Lackey. The problem is that the lineup lacks major punch. Chone Figgins and Ichiro give the M’s quality bats at the top of the order, but can this team score enough runs on a nightly basis? The club has been built on pitching and defense but if they want to make the postseason, the Mariners will have to prove that they can overcome a powerless lineup.

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