New York Yankees: If the Yankees aging lineup has any aspirations of making the playoffs, two 25 year olds hold their fate. Masahiro Tanaka and Micheal Pineda are scheduled to pitch the next two games for the Bronx Bombers. If both struggle and lose, especially after the Astros took two of three, the focus of many Yankee fans will shift from the marathon the season is to the sprint each individual series becomes.
Anaheim Angels: After allowing the 2nd most runs in baseball during their opening season series, the Angels now face the "built for the future" Houston Astros. Yes the Astros took two games from the Yankees but if Anaheim drops the first two games and slips to 0-5 to start the season, a mayday should be put out for Manager Mike Sciosica's job. As in, any day in May he should lose his job.
Miami Marlins: League leader in runs scored and their ace gets the ball on Saturday. Chase Headley, aka the straw that stirs the drink for their opponent San Diego Padres, has started out hitting .083. A Marlins sweep is quite feasible which would move them to 7-1 putting their win total at 11% of what they accomplished all of 2013.
Colorado Rockies: You have a healthy Tulo and CarGo and got outscored almost 2 to 1 (27 to 15) in your first series. Leading into the season looking at the Rockies schedule, fans had to be excited to see that the first seven series were against teams .500 and lower in 2013. For a 74 win team, this was as "cupcake" of a schedule as possible. So far, you're doing it wrong!