While they're at it, why not cut back the engines to one, as well?
I mean, jeez, an Embraer ought to fly just fine with one big ol' Trent 500 over the tail!
Redundancy? (in the U.S. sense - meaning backup, not "surplus to requirements") We don't need no stinking redundancy! In either the cockpit or on the wings.
Engines never fail, and human pilots are never incapacitated. Right?