If the Brewers were going to be "buyers" then the best option would be to trade for Haren. With three more years of service with Haren for the Brewers that would give you rotation next year of Haren, Gallardo, Wolf, Parra, Rivas/Butler/Rogers which wouldn't be a bad rotation probably somewhere around average to above average. One of Fielder or Hart would have to be traded in order to fit Haren into the team budget wise. As for getting Haren I believe the Brewers would have to give up Lawrie and one of Scarpetta, Odorizzi, or Jeffress and a PTBNL. I am not sure that would be a good idea to gamble on the future like that. But it could be an intriguing move by Melvin if he did pull that off. I really do not like Oswalt and I believe his age has caught up to him and he really isn't an Ace type pitcher anymore.