Who are the three point guards Quin can go to in games? Burke, Neto and ...?
He can go to Burks. When a team carries 3 PG's into a season it's not like they go out and sign another PG as soon as one gets injured.
Locke didn't say it was definite, but carrying 4 PG's on a roster is handicapping yourself, especially since all 3 PG's we would have would be too small to switch over to playing the 2.