Let's keep it a bean here. Outside of D.O.C and the Lady of Rage, who did Dre really brought in? Eazy-E curated all that talent for Ruthless. Ice Cube was Sir Jinx' homie who was Dre's cousin, so Dre got with Cube by default. Snoop was Warren G's homie and we know Warren G is Dre stepbrother. So, Dre inherited getting Snoop, Nate Dogg, RBX who's Snoop's cousin, Daz who was Snoop's other cousin and pretty much Tha Dogg Pound in essence. And we know Eminem was per chance however THAT story went as to who heard the tape. But 50 Cent was through Eminem and 50 Cent had his G-Unit shyt and Eminem had his Shady shyt, and then there's Kendrick to which we know that TDE.
It's just by HAPPENSTANCE because Dre after the Chronic blew, EVERYONE wanted to get with Dre. And that machine really helped that album to blow because for DAMN SURE had BLACK MAFIA LIFE had that same push and came out a month earlier rather than a month later, Cold 187um may have been that go to GUY pushing forward the G-Funk sound.
Dre is fortunate. That's said, DJ QUIK did bring in AMG, 2nd II None, Mossburg, Suga Free , Hi-C.... it's just again, the backing of the machine.