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From a raw inside perspective, having one of your first hires and a long-time personal friend fired out from under you is a very bad sign of one's standing within an organization.
I'm not sure if Z was just caught up in the moment or what, but the Lueke saga has burned up a TON of his inside capital if you read between the lines. Lots of fudging and blame-shifting and, now, scapegoating of a buddy. It's not clear who's right, but Z doesn't end up pure no matter how if ends up being sliced. He either had no idea, or had some idea and fudged, and either way it's a dark spot. And his story doesn't line up with Adair's or the Rangers' versions.
It's REALLY too bad that his moment of great triumph could also put him on thin ice.