Foul is foul.
But those ambiguous situations often go uncalled, like when trailing behind the post and giving the pick-and-roll player a little shove; or when driving to the basket, if you jump up vertically first and then have some body contact, as long as the contact isn't intentionally changing the opponent's direction, it won't be called a foul in regular season, and in the playoffs, the referees won't care if the contact was first or if the body was contested first.
Like his two recent defenses on Adeny.
And this is how the Kings are defending Van Exel!
As for why Campbell got flustered by Adeny's breakthrough?
The reason is simple, Campbell's lateral movement speed is insufficient after defending against the inside pick-and-roll, moving too slowly, with the strongest power on the court but unable to use it.
