I know this sounds bad, but I don't think anyone thinks they are trying to win. If they can win 75-80 games it would be a major accomplishment with the team they have to work with.
They should give SWR a few weeks to figure it out in the bullpen before dumping him.
The best case scenario is they can dream up some sort of injury and put him on a rehab assignment and see if anything clicks.
You also don't dump a former prospect so quickly when he's not getting a huge salary.