The Brewers are seen by baseball executives as a new serious player in the Roy Halladay sweepstakes and have a strong enough farm system to get a deal done. Two top Brewers executives, Gord Ash and Dick Groch, scouted Halladay's most recent start, and word is going around baseball circles that Milwaukee could build a good package. One named that could be part of a large package is young left-handed pitcher Manny Parra. Parra, 26, is 4-8 with a 6.37 ERA but has looked good since returning from the minors. He was 10-8 with a 4.39 ERA last year. "Doug [Melvin is] a very good GM. I see him pulling something like this off,'' a competing executive said. "We're going to be aggressive,'' one Brewers person said without mentioning any specific names.