I dont get the BPA

Ti Rider said
Let me put like this -

BPA has yielded players like - Deuce McAllister, Reggie Bush, Will Smith, Jammal Brown

Drafting to fill a need has yielded players like - Jonathan Sullivan, Alex Molden, Vaughn Dunbar

You tell me which method is best........

reggie bush didnt turn out to be the impact-offense-turnaround player .... smith is very pitiful since he take the starterjob .... deuce is injured again and jammal brow wasnt bpa , he was a need AND we traded up for him.