May 27, 2010 12:30 PM EST

Matt Wieters has yet to become the kind of hitter many were projecting before his MLB arrival in 2009.

Wieters hit .288/.340/.412 and nine homers in 2009 and .256/.318/.365 with four homers this season.

Krem's Sports Blog offers three reasons why Wieters has struggled.

Reason #1: He's not hitting the ball as hard.

Reason #2: He's hitting more ground balls.

Reason #3: He's struggled with fastballs.

Via Krem's Sports Blog