I'm not a fan of Broner but it seems he tried to make a fight with Vasquez before he fought DeMarco and tried to make a fight with Burns before he ended up fighting Rees. Burns WBO VS Vasquez IBF and Abril vs Bogere WBA are a locked up in fights and Rees is the next best on the list to fight.
Williams was a freak of nature, and it was inevitable that he'd be taller than pretty much any of his welterweight opponents. Broner, on the other hand, went out and engaged in a prize fight with an honest-to-God dwarf.