The Arizona Diamondbacks tumbled from their 2011 NL West title with a thud this season, and that means changes are in store for 2013.
General manager Kevin Towers said the top priority is upgrading the left side of the infield, particularly at shortstop, a position that is thin in the team's otherwise outstanding minor league system. He indicated that third base is another target.
He characterized the free agent market as ''not real strong.''
''So probably those moves to upgrade those positions more than likely will have to come via the trade,'' Towers said.
The Diamondbacks, he said, would like to ''add another power arm'' as a late-inning reliever along with setup man David Hernandez and closer J.J. Putz and ''definitely'' need a left-handed specialist. Towers said the team expects to pick up Putz's option for next season.
Towers also will be looking for a veteran pitcher to add to the team's young ro...