Actually it sounded like the reverse on the first part -- Westphal singling out Tyreke for not attacking the zone correctly, Tyreke not being happy since he wasn't the only one not executing, him mumbling something back, and leaving. Did not sound too serious, but there is a danger zone here. The team has been playing well and playing together, but it can't go on losing that way forever or the losing itself will tear it apart. And a conflict such as this can either cause a group to pull it together again to get over the hump, or can break the unity with which its been playing. That would be a damn shame, and really is something this franchise can't afford. It would also spell the end of Westphal after the season.
The only person I saw confronting Casspi was Beno. Westphal had some vague quote about it, but nothing aggressive. Maybe just reporters pointing out the obvious failings. Or maybe they were upset with me for doing the same.