With the lack of name-calling (sleazeball!), this isn't exactly an Ian Kinsler-level takedown of a former team, but former Cubs and now Brewers starting pitcher Matt Garza had the following to say about his former team:
“And I wish them the best,” he said about his former team (suntimes.com). “But I like where I'm at, and I'm going to try to kick their teeth in every time I get a chance.”
Garza went on to say that the new Cubs regime (Theo Epstein, Jed Hoyer, etc.) made it clear that he shouldn't get comfortable in Chicago due to the rebuilding effort -- after the two sides failed to agree on a contract extension. It wasn't necessarily framed that he felt it was a negative against Epstein and Hoyer -- and, really, would Garza have rather they lied?
This isn't nearly on the same level as the Kinsler-Rangers stuff because Garza, again, didn't resort to name-calling. An intense competitor wants to beat his former team who just happens to play in the same division? Nothing wrong with that.
But it's out there, so we'll pass along.