Boston general manager Theo Epstein said before last night's 6-4 win against Toronto at Fenway Park that he might be forced to make changes. ``We're not getting the job done right now in the bullpen, so we're going to pursue multiple tracks to try to improve,'' Epstein said. ``One track is internally and trying to get the most out of the guys we have. A lot of these guys have track records, and if we can get them back pitching to established norms, we'll be in good shape. A second track is from outside the organization . . . and (that's) something we're working on every day.'' Seattle's Shigetoshi Hasegawa and Tampa Bay's Danys Baez are among the veteran relievers currently available on the trade market, but with far more buyers than sellers, return prices remain prohibitive.