The Diamondbacks have rewarded GM Kevin Towers and manager Kirk Gibson for a successful 2011 season, signing the pair to new contracts. Nick Piecoro of the Arizona Republic reports that Towers and Gibson are both signed through 2014 with team options for 2015-16. Towers had been signed through 2012 with two two-year options, while Gibson had been signed through 2013.

MLBTR's Transaction Tracker offers a complete look back at Towers' moves. He rebuilt the team's bullpen and bench last offseason and it appears that he will focus on second base and adding depth this offseason. The D'Backs won the National League West this year, Gibson's first full season. Arizona posted a 94-68 regular season record before losing to the Brewers in the Division Series.
Both are well-deserved. Gibson should win NL Manager of the Year this year. I made fun of Towers scrap heap signings last offseason but some of the paid off and they won the West.