For billionaire investor and entrepreneur Mark Cuban, great leaders avoid certain things at all costs.
Here are four moves the voluble Dallas Mavericks owner and "Shark Tank" investor thinks trailblazers should never make.
"Leaders don't change their positions mid-debate. They welcome scorn from the masses because it creates the opportunity for dialogue," he said.
"Leaders don't look backwards to condemn what has already been done, they look forward to create a better future," Cuban said.
"Leaders are not dogmatic. They are principled and know that change is never easy, but when it's necessary, they must lead," he said.
Disclosure: CNBC owns the exclusive off-network cable rights to "Shark Tank."