Always on the lookout for pitching depth, the Phillies have agreed on a one-year contract with veteran lefty Dontrelle Willis, according to sources. Willis will get a big-league contract worth about $1 million when he passes a physical. The deal is non-guaranteed, which means Willis could be released with 45 days termination pay in March. In other words, he has to make a good showing in spring training to stick with the club.