Ok, but doesn't a team have to call a timeout after a made free-throw if they want to sub-out the player who got fouled - and had to stay on the floor to shoot the free-throw?
If he misses it, he most definitely has to wait for a stoppage to be subbed-out. But I believe even if he makes it and the other team has to inbound the ball, the free-throw shooting team can't make subs at that point.
"Air is beautiful, yet you cannot see it. It's soft, yet you cannot touch it. Air is a little like my brain." - Jean-Claude Van Damme