Why? Boston gave up on him....he's already got 2 blown saves...and all the others have been shaky as hell. We can argue the semantics of the word "bust" all day long...but it hasn't been a good acquisition. This guy is Carlos Marmol all over again.
Okay since you are still pushing this idea. Boston didn’t have any money to sign him. They didn’t sign him, just like every other team in baseball because of his asking price and that’s simply the way the free agent market has been the last two years. Kimbrel was still extremely good for Boston last year, not including the playoffs.
He’s not a bust because he has been good outside of two appearances and simply because he was expected to be rusty coming in mid season. He had a prolonged layoff and no amount of throwing is going to prepare you for the intensity of in game action.
Also comparing him to Marmol is confusing and doesn’t make sense. Marmol was one of the most dominant relievers in baseball for a few years. Kimbrels struggles he has had are not really extreme control issues that ruined Marmol either. Very poor analogy.
So there you go, labeling a guy a bust after a mediocre month when it could have been expected he might struggle a bit early is not correct