This probably falls under the not gonna happen tree because of same division but maybe.
Brewers trade: Garrett Mitchell, One of Wilken/Adams and One lotto ticket
Pirates trade: Oneil Cruz
The Pirates are playing Cruz in CF and he is terrible there. Mitchell would immediately be their CF of the future. Despite having worse offensive stats, Mitchell has more WAR because of defense. I would play Cruz at 3rd where I feel like he could be pretty decent. His power would help the lineup.
From a bigger picture perspective, I really like the Brewers pitching and the top of their lineup. The bottom of the lineup has too many holes at the moment. I am willing to give Ortiz the entire season to figure it out. I am not willing to give Durbin the full time 3B job. I prefer him as a guy that plays all over and can create havoc at the end of games in a PH role.
Since the budget might be getting tapped out, we need to use our prospects to help out the team now.