FORT MYERS, Fla. - The Minnesota Twins are hoping that one it's younger pitchers will rebound this season after a discouraging sophomore slump.

A couple of years ago, left-hander Scott Diamond gave a struggling pitching staff some hope for the future. In 2012, Diamond went 12-9 with a 3.54 ERA, but last year there was a major dropoff.

Ineffective and overthinking, Diamond's ERA ballooned to 5.43. He finished with a 6-13 mark and his confidence was down.

"One of the biggest things we noticed last year was that my changeup was just too hard," Diamond said. "Really, the velocity from my fast ball and my other stuff was just too close to really have an edge."

It might sound minor, but Diamond who is not known for an overpower fastball relies heavily on changing speeds.

"This offseason, I really tried to slow down my changeup, and so far based on my (bullpen sessions), it's been pretty good.

Diamond is expected to compete for one of the spots at the back end of this year's rotation. That's compared to last year when many in the organization were hoping Diamond would be at the top.s