The Craig Kimbrel signing really wasn't bad. In 71 regular season appearances, the right-hander had a 3.23 ERA in 69 innings pitched, converting 23 saves in 28 tries and adding seven holds. Kimbrel was an All-Star for the Phillies and was one of Rob Thomson's most trustworthy relievers all year.
Yes, there were outings in which he was quite shaky, but Kimbrel, for the most part, got the job done. His fine year continued in the postseason in his first four outings when he threw four scoreless innings and converted three saves. His only appearance of those four that didn't result in a save saw him record three of the biggest outs in the clincher against the Braves.
Things really unraveled for Kimbrel in Arizona as he blew back-to-back games to help the Diamondbacks get right back in the series. He absolutely deserves a ton of blame for this series even returning to Philadelphia. The signing wasn't a total disaster, but it sure ended poorly.
The way his season ended makes it very hard to see the Phillies showing much interest in bringing him back. His good regular season featured many shaky outings, and his implosion late was the final nail in the coffin. I'd expect them to go bigger as they search for a right-handed compliment late in games to pair with José Alvarado.