Here, I use the best peripheral stats legally available to try and break down the struggles of three young outfielders. Prognosticating is a difficult business, but there may be no diamonds in this rough.

The Roster Doctor goes back to his buy-low, sell-high article that used Defensive Efficiency Ratio (DER) to try and identify some buy-low and sell-high pitchers. The DER measures how many balls hit into play that were turned into outs, and like BABIP, can be a useful tool to identify unlucky pitchers. But it is only one of many tools, as the Roster Doctor painfully discovers.

The Roster Doctor takes a look at the louder trade rumors out there and how they might affect managers, especially those in NL- or AL-only leagues. After CC Sabathia dropped like a bomb on NL-only leagues, it only pays to be prepared for the next potential move.

In this article the Roster Doctor takes a look at Justin Masterson and Clay Buchholz. These two are linked by the decision by the Red Sox to send Masterson down to work in the pen, while calling up Buchholz to pitch in the rotation. While this flies in the face of recent results, a look at the scouting, pitch F/X data, minor and major league statistics, as well as team concerns, may show a different verdict.

In this article, the Roster Doctor takes a look at NBA Free Agents and tries to find out which guys may gain the most value through their impending move to a new team. Gilbert Arenas will be Gilbert Arenas wherever he goes, but what about the other guys that may see a significant spike if they move this offseason?

After a Jay Bruce trade offer, the unholy name of Kevin Maas was recently invoked. The Roster Doctor takes a look at Kevin Maas' minor league numbers, finds two principles at play that may have predicted Maas' one-and-done-ness, and uses those principles to evaluate current young players including Jay Bruce.

Which teams are the paper tigers? This article looks at the Pythagorean expected wins and losses in the majors to see which teams might be on the move in the standings. Now that we are over a third of the way into the season, it makes sense to look at runs scored (RS) and runs against (RA) to try and pick out the real contenders for the postseason.

After matching up all five positions and the bench, the Roster Doctor drops a somewhat surprising prediction. Using a combination of stats and analysis, he finds that the Celtics have edges in many of the head-to-head matchups. But yet he picks the Lakers - read to find out why.

This article goes through most of the anti-instant replay arguments and picks them off, one by one. There's no reason to continue to be hard-headed with the technology at our disposal.

Here, the Roster Doctor uses the pitching version of BABIP (Batting Average on Balls put In Play) to analyze various anomalous starts around the majors. Will Roy Oswalt get it together? How about Justin Verlander? Surprisingly, not all hot starts make for sell highs. Check out this quick hit list of pitchers to see how they've benefited or been hurt by amount of batted balls finding mitts behind them.

Eno Sarris uses sophisticated secondary and peripheral statistics and measures in order to decide if Edinson Volquez's fast start is sustainable. He also uses Pitch F/X data from his last two starts in order to analyze his control and command. If you are a stat-head, this sort of article is for you. It was originally posted on www.fantasyloungesports.com.