Getty The Dallas Cowboys moved on from Mazi Smith in a blockbuster trade with the New York Jets. The NFL trade deadline proved to finally live up to the hype for Dallas Cowboys fans after plenty of years where no major deals happened despite a plethora of rumors. Reinforcements are coming for the struggling Dallas defense but there is a cost. The Cowboys surprised the NFL world by striking a blockbuster trade with the New York Jets for star defensive tackle Quinnen Williams . Dallas is sending