Again you cite age as a factor when it is not always the case. Certain fighters peak young such as Tyson others later in life Johnny Nelson and some just fight at the top level for many years such as Hopkins.

I know Naz lost to Barrera and it was a surprise because Marco had lost to Junior Jones and Morales. Peak Naz would have had a plan B and C if required to beat Barrera. Naz was clueless in the fight so much so that it had to be down to the fact he was finished at the top level. He only fought once after that fight.

Naz beat some quality fighters in his time and to do that he had to adapt. Naz would break down his opponents bit by bit and if he could not stop them he would comprehensively out box them and win on points.