It's the mindset . . .
. . . not the plane.
“The fifth generation pilots are going to have to be trained that firing first is not their core con-ops. Giving validated targets to other shooters is the ‘to be’ condition,” Wynne said. “This is reversing decades of training and experience where the instinct is to fire first and ask questions later.
“With fifth-gen aircraft you are setting up the air space for air dominance, and weapons are delivered from assets throughout the managed airspace. Without the fifth generation aircraft you have to fight your way in and expend significant effort just trying to survive. With the fifth generation aircraft you are setting up the grid to shape the offensive and defensive force to achieve the results which you seek.”Full article.
Fifth generation = F-22 and F-35. The article is an excellent summary, though since it's by necessity it skims the surface and doesn't mention other technologies that are changing the entire shape and demands of the battlefield. (Think UAVs for starters.)
(Thanks DR, for the link.)