Could Erick Aybar's stranglehold on the starting SS role be in jeopardy? Plus the Giants rotation, Dodgers bullpen, Rockies outfield and D-Backs 3B options.

Does Archie Bradley have what it takes to become a dominant bullpen arm? Plus a check-in on the catching situations in SD and LA, along with a look at the Giants 1B picture and fallback 3B options in COL.

Giants outfield undergoing some changes, along with the Padres 3B situation, Arizona shortstops, Rockies 1B and the back end of the Dodgers rotation.

With the final two spots locked down, Arizona's rotation could be in for a big year; the evolving OF picture in both SF and LA; plus the Padres SS situation and Rockies bullpen.

Antonio Senzatella makes a strong push for rotation bid in COL, while the Diamondbacks explore options at C, plus shortstops in LA, second basemen in SF and the youth movement in SD's outfield.

Oft-injured LA rotation validates the idea that there's no such thing as too much starting pitching, while COL looks to fill the hole left at 1B, plus SD catchers, the SF bullpen and 2B situation in ARI

The Diamondbacks appear set in the OF, but what do they have in terms of reinforcements? Plus the current favorite for saves in COL, the Padres rotation, and veterans eyeing playing time in SF and LA.

A former stud on the mend looms as a threat for the SD closer's role; Dodgers avoid a scare; SF's left-field battle; plus Arizona's SS and COL's 2B options.

A few veterans and a new arrival from the KBO vie for 3B at-bats in the Giants infield, plus the Rockies catching situation, shortstops in San Diego, the D-Backs' rotation and the Dodgers bullpen.

With a number of options in the Dodgers OF, who has the inside track for playing time? Plus a look at the 2B situation in San Diego, bullpen in Arizona, and filling out the starting rotations in both San Francisco and Colorado.

A close inspection of home run types—with a particular emphasis on the "Just Enough" variety—provides illuminating insights about how to use home-run-type analysis to predict future pitching performance.