I don't think that they have to win by 13 to justify being "great", but when they are playing (this year's version of) UB basketball, they would win by that number, or more.
This is a "great team" in my opinion, especially as compared to any of UB's teams from prior years. Have they had bad stretches in games? Most definitely. So has Duke, UVA, etc. When these guys play at the top of their game, there isn't anyone in the league who can even think about hanging with them. That goes for both ends of the floor. If the energy on (team) defense is there, and is also there on the glass, look out. Their defense can turn into offense quickly, and if they can limit teams to one (contested) shot, they will be next to impossible for anyone to handle in this league. Injuries aside, I think that these guys know how big of a week this is, and if they can get it done over the next two games, there's no reason to believe that they'll finish anything other than 16-2 in the league season. I like to believe that they will get it done, starting tonight.