You people need to learn what an executive producer does. He comes up with the concept behind the tracks mainly.
Dre does build the beats himself, but he doesn't perform every aspect. He may tell someone his vision and then they come up with the synth sound, or program the drums or add guitars etc. He teaches them and they become better producers for it. It's the way of the world. At work do you not have managers? Most McDonalds do. Why you put ice in drinks, isn't there a line of people making burgers? So before you slag off Dre, respect what he's given rap and hip-hop and recognise the legend.
And to Haunted, here's an answer, finally. It was produced by Dre and intended for the Helter Skelter album. But Suge called rank and gave it to 2pac, along with Cali Love.