To me (and, I suspect, to other people in this thread who have made the allusion), "run n gun" does not mean "no defense" or "lacking in fundamentals." To me, "run n gun" is shorthand for "lack of a reliable low post offensive threat." Shooting threes is not the baseline, lack of a low-post threat is. As long as you have a guy whom you can dump the ball into, down on the block, and say, "Go get me a basket, and/or get fouled," Then I don't think you can be reasonably described as a "run n gun" team, whether that guy is Hakeem Olajuwon, Tim Duncan, Dwight Howard or LeBron James. I also feel that any team that lacks such an option can be reasonably described as a "run n gun" team, and that defense and fundamentals have nothing to do with it.