Twins acquire two relievers, lose minor league pitching depth

 In series of roster moves prior to the weekend, the Twins secured right-handed set-up man Jon Rauch from the Arizona Diamondbacks for a player-to-be-named and left-handed specialist Ron Mahay after he was released by the Kansas City Royals but lost surging pitching prospect in Yohan Pino to the Cleveland Indians to complete the Carl Pavano trade.   The availability of minor league arms shrank by one more as Pino was selected by the Indians.  Not surprising, Pino has compiled a stellar year split between AA New Britain and AAA Rochester.  In his past two starts, Pino tossed back-to-back eight inning performances while striking out 13, walking two and allowing just one run.  Complaints from the various levels of the farm system were vocal as the Twins have borrowed numerous pitchers this season as injuries and ineffective outings piled up leaving affiliates with undefined rotations as guys like Jeff Manship, Armando Gabino, Sean Henn, Brian Duensing waited fo...