Can anyone explain....

[Nevadaref]

Player control, which must be established at some point in order for there to be team control, is defined as holding or dribbling a live ball INBOUNDS. During a throw-in the thrower is standing out of bounds, so this player cannot establish player control by definition. Hence there is no team control during a throw-in.

The NCAA decided to alter the team control definition, but not the player control definition, a couple of years ago when introducing the team control foul.