Do you really think that Earl Watson during the season is doing college scouting?
He may not be full on scouting but I'm sure he's watched a number of college games this year. He probably caught the UCLA vs Washington game since it involved 2 of the top prospects in this draft going head to head, plus UCLA is his Alma Mater so I'm sure he has a vested interest in watching them play anyways. If he watched the tournament he saw Ball and Jackson a lot and they don't fit that bill but Fultz does, who was absent from the tournament. If you only saw one game from Fultz, like the Washington vs UCLA game, you saw him get outplayed by Ball and then miss the next UCLA game.