He is angry when he is at his best, demanding excellence.

He is the heart of the 49ers' defense, a coach on the field who demands excellence from his peers and even more from himself.

"He demanded excellence from his subordinates, but he always drove himself harder than anyone else."

I'm trying to find the third way, which is demanding high standards and excellence while letting your people know you are on their side.

As parents and residents, we have always demanded excellence.

Johnson was relentless in demanding excellence and getting it from his players.

Phyllis demanded excellence from her fellow board members and we were happy to comply.

But we must demand excellence at every level of education.

"We must demand excellence at every level of education," said the President.

Chaney built a reputation as a tough coach who always demanded excellence on and off the court.