When to pull financial plug on son? Doesn't care about his T50 college, he's just sort of...there.

But didn’t your husband, through connections, get him a “better” job than the one he would have gotten himself, despite his 2.low GPA? Seems like that inadvertently taught him the wrong lesson – that doing minimum possible effort to avoid academic dismissal will be sufficient since his parents will do extra to push/pull him along into “better” results than otherwise.