I hate to come to Kimbrel's defense because I was as frustrated as anyone with his performance this year, especially toward the end of the season. However, 42 saves and 5 wins isn't to be sneezed at.
We have no way of knowing how many of those 47 wins Kimbrel was responsible for. Would the results have been different if we'd had, say, Joe Kelley or Barnes or Brasier as our closer? As someone - I think it may have been Doji - said a while back, 'Not having a lights-out closer isn't a big deal... until you don't have one."
To put it in perspective, Kelly Jansen had 38 saves and Aroldis Chapman had 32 and had either of them been our closer we wouldn't have won the AL East.
I'm not advocating signing Kimbrel at any cost but 47 wins is a lot to dismiss out of hand when we're talking about making a run again next year. Jus' sayin'.