I have gotten an impression that this is not a serious issue. If it were, it would not be up to Tubby to decide the length of suspension. Tubby is a savvy manager who knows what to say to the media and how to maintain public relations. So, I will take his quote at face value that 1) the matter warrants suspension and 2) it is something he can rule upon. In other words, they could be rather common team rule violations, and he needs to make sure every player undertands not to repeat them.
Because of Mbakwe and his felony charge, I am sure there will be concerns from various directions over how the team is run as well as some moral issues. Maybe, the rather stern tone (e.g. possible 20 games) is a demonstration of our commitment to running the program in a right way (even if the matter is not so serious in nature).
We'll see...