Stop kidding yourselves — Craig Kimbrel wouldn't magically solve all of the Cubs' bullpen issues.
Even if the elite closer (who is still a free agent, by the way) walked through the door of the Cubs locker room tomorrow, that doesn't suddenly make this one of the best bullpens in the game. And it sure doesn't change anything in the standings — the Cubs can't retroactively add three more wins to their record.
Five games into 2019, the Cubs don't have a closer problem. They have a problem getting the ball to the closer.