Leaders keep their eyes on the horizon, not just on the bottom line.

Warren G. Bennis
Profession: Author
Nationality: American

Some suggestions for you :
Leaders are people who do the right thing; managers are people who do things right.
The manager asks how and when; the leader asks what and why.
Good leaders make people feel that they're at the very heart of things, not at the periphery.
Failing organizations are usually over-managed and under-led.
Great Groups need to know that the person at the top will fight like a tiger for them.