That Doug Funnie remix
Moreso people found out Hit-Boy was ghost producing a lot of his shyt. And Hit-Boy branched out on his own. Also Polow would leak people's music and he may have been the one to put the battery in Keri Hilson's back to do that Beyonce diss. Basically a lot of fukk shyt he was doing plus his sound got played out and him not being that talented in the first place. He had his run and industry and what's hot moved on.
That whole album is fire. That and Cormega The Realness are two dope underrated albums