I submit the following brief to the court:
The outcome of the Mixon situation is undeniably worse by an order of magnitude, but I think there is an argument to be made that what Bridges and McGowen did showed them to be worse people. Mixon's right hook was a reaction to at the least a minor annoyance and at the worst incessant racial insults. Neither end of that spectrum in any way justifies the assault, but it's undisputed that he did not leave his dorm that evening planning to assault anyone.
Bridges and McGowen's stupidity, however, shows at least two levels of premeditated violation of team rules and state and federal law. First, they have a drug dealer. This shows they have purchased illegal drugs in the past. No moral judgment for getting high here, but purposeful violations of team rules generally have a direct inverse relationship with character. For Bridges, he had already been suspended for a positive drug test at least once. It is unclear why his suspension lasted longer than the other two players who were suspended at the same time, but there is some speculation it was due to a subsequent drug violation of some sort. Second, if the rumors are true, Bridges and McGowen left their house with the premeditated intention to commit a violent robbery using firearms. This was not a split second reaction like Mixon's assault. Bridges and McGowen dreamed up a plot where at least one of them was going to put on a ski mask, hold up their drug dealer at gun point, and steal things from the drug dealer's apartment. Then, as they were bouncing this idea back and forth, they collectively decided "You know what? That sounds like a great idea!" and put the plan into motion.
The proper answer to both situations is probably to kick all three off the team, but I think Bridges and McGowen's actions are more telling about them personally and show less of a possibility of reform than Mixon's.