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Orioles starter Wei-Yin Chen
Baltimore Orioles: Starting pitching consistency
The Orioles won 93 games last season despite having just one starter win double-digit games, with rookie Wei-Yin Chen going 12-11.
In total, 12 different pitchers started a game for the Orioles and only Chen made more than 20 starts. If they hope to duplicate last season's success and return to the postseason, they'll need a far more consistent performance from the starting rotation.
Boston Red Sox: Veteran production
Last year, the Red Sox got some of their best production from guys like Will Middlebrooks and Felix Doubront as their high-priced veterans were largely disappointing and a big reason for the team's major overhaul.
Shane Victorino, Mike Napoli, Ryan Dempster, Joel Hanrahan, Stephen Drew, Jonny Gomes, David Ross and Koji Uehara have all been brought aboard this offseason. Their performance will go a long way toward determining how the team performs in 2013.
New York Yankees: Offense
For a team that ranked second in the league in scoring last season and had concerns with their pitching staff all season, saying offense here may seem odd.
However, with a starting lineup slated to feature the likes of Eduardo Nunez, Chris Stewart and perhaps Jayson Nix if Derek Jeter is not ready to open the season, the team may not have quite as easy a time scoring runs this season.
Tampa Bay Rays: Run production
The Rays took steps to improve their offense this offseason, signing James Loney and trading for Yunel Escobar, as well as trading for Royals prospect Wil Myers.
Myers may not make an impact until midseason, though, and aside from Evan Longoria the team still lacks a proven run producer. Ben Zobrist and Matt Joyce are solid, but the team needs to improve its middle-of-the-order run-production abilities.
Toronto Blue Jays: Team chemistry
With nine new players currently slated to be on the team's Opening Day roster, the Blue Jays have a completely new look this coming season.
Stars Jose Reyes, R.A. Dickey, Josh Johnson and Mark Buehrle along with Emilio Bonifacio, Melky Cabrera, Josh Thole, Maicer Izturis and Esmil Rogers are all newcomers. On paper, the Blue Jays don't look to have any clear holes, but they'll need to come together as a group quickly.