I think people forget just how good Nick was during parts of the 17-18 season. Before his injuries really took a toll, he had an absolutely fantastic stretch in non-conference where he was a triple-double threat every game. Over a 6 game stretch (Puerto Rico tournament through the Iowa game), he averaged 14.3 points, 9.5 assists, 7.7 rebounds, 1.5 steals, 1.8 turnovers, while shooting 51% from the field and 41% from three. Even at that point he certainly had some problems with his knees, but this was before those problems got really bad. I think you can certainly say that without injuries, he would have had NBA potential.