I absolutely hated Gregg the first time he was with the Cubs, I was glad to see him go. When they picked him up a second time, I said "I'll have some of whatever Theo is smoking!". He proved me wrong, and provided a modicum of stability to a craptastic bullpen.
He has now outstayed his usefulness, and I would like to see the auditions for closer of the future begin, starting with Strop. Trade Gregg for whatever you can get.
Goodbye Kevin, thank you for your service. Now, GTFOH!