When do you assess the T?

[A Pennsylvania Coach]

Dan,

I hear what you are saying. Personally I'd like to see the T if the starters aren't in at 9:59. I can live with a little discretion, but way too often it goes too far, especially at the varsity level. Things like "hands off" in the fourth quarter. If you keep warning and never call, what's the point?

And no, the first guy wasn't correct. If he didn't discover the player lined up out of position until after the shooter had the ball, there is no justification for him to call a "do-over".