I agree with the injury part and the weight room, but how do you help players become professionals if you are not there to be a visible influence.
The games he missed were early in the season. He just got injured and was sitting that game out, but rather than attend the game at the UC, he just didn't show up. I remember Paxson being miffed about it, because he had no idea Pip wasn't going to be there. He also missed the next couple of road games too.
As far as calling people out, that's fine, but anyone can just call someone out. Hell Antonio Davis called the kids out too.
Pippen was signed to show these kids how to be professional and show them what a strong work ethic is and personally I haven't seen it from day 1.