they have two totally seperate crews. People crew is kinda like a B team to them. Originally the People crew was mostly a company called Neo Proto, which was a bunch of guys from Tahoe pretty much, then the producer of neo proto joined mack dawg to create the people crew and brought some of his riders with him, and also added some others. Now its mainly just the producer from Neo Proto (Pierre Minhhanado (sp?)) and 2 or 3 riders from neo proto.
I think its kinda cool how they do it. I dont think anyone has yet to go from the people crew to the main Mack Dawg crew. Austin Smith is really close though. Just needs his sponsors to pay the money.