I know Syko did the beat to arguably Mac Dre's biggest song, and quite a few other beats for him, but even coming from someone who isn't the biggest fan of his music he was on his way to being nationally well known regardless. Dude had the personality that more than likely would have taken him far if he wouldn't haven't gotten murder. You can't buy the charisma Dre had, either you are born with that or you aren't.