I don't think Hart is suddenly terrible. I suspect sometimes he will be an exciting player and fan favorite, and other times he will disappear for weeks on end hacking away at pitches. In other words, he's a lot like a lot of ballplayers, hot streaks mixed in with lows. His hacking tendencies tell me the lows will become frequent and last longer over time. That doesn't mean he's a bad player. You have to trade quality to get quality. I think he's one player the Brewers can afford to part with if they got real value in return. Which I think they would. I don't think they can afford, nor need, to part with Braun, JJ, or Prince at this point.