How hard is it to fly--at least take off and land--a military/civil jet if you' we never flow it?

Oh yeah. Discoverability= makes me want to take a pick axe to the dashboard.
You do raise an interesting point about glass cockpits generally. How much of an improvement are there really to the old input styles? They look awesome, but for fighters (and commercial airliners) are they all they are cracked up to be?