Defensive Rotations

I grew up playing soccer. I played basketball a few seasons while in middle school, so I don't much but about the game, other than what I can infer from watching. Something that is glaringly obvious this year are our POOR defensive rotations. We seem to be shutting down the middle of the lane and giving up jump shots instead. I suppose that is a good strategy against many teams, a team like the Bulls. Teams that prefer to pound the rock inside whether by passing it down low or driving to the hole. It doesn't work against teams like the Nuggets or the Suns. It seems like a good idea to play that way agaisnt most teams, but any team in the NBA can heat up and sink shots. As we saw when we played the Spurs. Shutting down the ball movement that flows mostly through Parker, Duncan, and Ginobili is key, but they got hot from midrange out and torched the nets. We don't seem able to adjust when that happens. I want to know, is this a problem of the players not having the ability or the coach not having the gameplan/know how? I'm going to guess that everyone will say it is a little bit of both, but I have no clue. If this was a soccer team I would know where the problem is, but its not, so help me learn, Thanks.