NCAA seeks free-throw, defense rule changes - ESPN
Not my OP but I found the story...
I'm not a fan of the invisible arc under the basket, or the visible one for that matter. Taking a charge is a risk/reward defensive tactic, this only takes away the reward for attaining a position before an opponent who may or may not make a try.
As far as substituting a free thrower, I've never liked that, I think allowing one of the other 4 players on the floor to take the free throws is a fair change. Think of a player with a weakness to the Hack-a-Shaq strategy. All he has to do under the current rules is get "injured" everytime he is fouled, sit out until the next oppoortunity to sub and his team benefits.
And if you're going to look at a replay to determine if a foul was flagrant, why not be able to penalize it as intentional or a technical if replay shows it clearly was?
Just my 2 cents on these.