Lonnie Jackson was supposed to be the example. The Christian staff saw him as a guy who had a few good skills but didn't develop enough physically or in his game to be an ACC player. They felt that was a failure of the previous staff. But he was also supposed to be someone who could lead the transition from Donahue to Christian. While other guys transferred or seemed out for themselves, Jackson was a guy who bought in to the new guys. He was ready to have a big year. Maybe he's a different type of example now that he's leaving.
This story has a different ending if Jackson doesn't get injured. If healthy, he would probably be a contributor right now and finishing his career at BC. Instead he and Christian's staff are moving on. Jackson can finish his degree and pick the right spot to play next year. His dad's quote seems like he doesn't care about location, just playing time. I am sure he will find somewhere.
For Christian, this creates a problem and an opportunity. Even if he wasn't a game changer, Jackson potentially provided some leadership, a shooter and some roster balance as a 5th year senior next season. They can find talent to fill his minutes and points, the question is whether it will be another 5th year, a traditional transfer or another incoming freshman. Ideally it would be a low-risk, high reward 5th year. That would keep the balance. We won't know until later in the spring when the transfer market shakes out.
Best of luck to Lonnie. I am sorry it never came together at BC for him or the other guys in Donahue's mega recruiting class.