Lemme guess...you're between the ages of 14-17, right? You were probably like 5 when 2pac was shot in Las Vegas.
Know your rap history man. Eazy did NOTHING other than give Dre and NWA a lot of money to start producing NWA records. That's ALL Eazy did...acted as a human ATM. Dre did the producing, Cube did the writing and I guess DJ Yella and MC Ren probably had a hand in writing and producing as well, but I don't know.
Either way, Eazy gave them money and rapped horribly on the albums.