Is NBA Rigged?

Just putting it out there. If not explicitly agreed then there could at least be a tacit understanding between teams to let the stars of the game shine. What I'm talking about is the plethora of double doubles and triple doubles being produced this season. Have these teams never heard of sitting on hot guys to prevent them from getting in their favoured slot? It is called defence. There is just too much room being given to the best shooters.