This post by LinkedIn Influencers Jack and Suzy Welch originally appeared on LinkedIn.

For some people, the question of whether leaders are born or made is truly intellectual — fodder for a good classroom or dinner party debate.

But for people in front-line positions to hire, promote, and fire, the question, "Who has the right stuff to lead?" definitely has more urgency.

Getting the answer right can drive an organization’s culture and performance to new levels. Getting it wrong can too — downwards.

So what’s the answer? Of course, since we’re talking about real life here, it isn’t neat or simple. The facts are, some leadership traits are inborn, and they’re big whoppers. They matter a lot. On the other hand, two key leadership traits can be developed with training and experience — in fact, they need to be.

Before going any farther, though, let’s talk about our definition of leadership. It’s comprised of five essential traits. These traits, by the way, do not include integrity, which is a requirement in any leadership position, or intelligence, which is likewise a ticket to the game in today’s complex global marketplace. Nor do they include emotional maturity, another necessity. These three characteristics are baseline — they’re givens.

So let’s go beyond them. From our experience, the first essential trait of leadership is positive energy — the capacity to go-go-go with healthy vigor and an upbeat attitude through good times and bad.

The second is the ability to energize others, releasing their positive energy, to take any hill.

The third trait is edge — the ability to make tough calls, to say yes or no, not maybe.

The fourth trait is the talent to execute — very simply, get things done.

Fifth and finally, leaders have passion. They care deeply. They sweat; they believe.

As you may have figured, positive energy and the ability to energize are pretty hard-wired. They’re basically personality. Similarly, passion feels inborn. Some people just seem to come fully loaded with intensity and curiosity; they naturally love people, life, and work. It’s in them. It is them.

Edge and the ability to execute are different. New hires rarely show up with them in polished form, and even middle managers benefit from training in both. But the best teacher for these two traits is trench warfare. That’s because edge and execution are largely a function of self-confidence. You can say yes or no a heck of a lot better when you’ve done it a bunch of times and seen how well decisiveness works.

Likewise, only in real world challenges can managers truly feel the power of moving quickly, demanding accountability, and rewarding results. They can also experience how damaging it is not to execute — a mistake most effective leaders don’t make twice.

So are leaders born or made? The answer (perhaps not surprisingly) is both. Your best strategy, then, is to hire for energy, the ability to energize, and passion. Go full force in training and developing edge and execution.

Promote the people who have a good dose of all five traits. Always remember, though, that not everyone was meant to be a leader. But as long as you are one yourself – it’s your job to find and build those who were.

Jack Welch is Executive Chairman of the Jack Welch Management Institute. Through its online MBA program, the Jack Welch Management Institute transforms the lives of its students by providing them with the tools to become better leaders, build great teams, and help their organizations win.

Suzy Welch is co-author, with Jack Welch, of "The Real-Life MBA — Your No-BS Guide to Winning the Game, Building a Team, and Growing Your Career," which debuted as a #1 Wall Street Journal and Washington Post best-seller, and of the #1 Wall Street Journal and international best-seller Winning.

Read the original article on LinkedIn. Copyright 2016. Follow LinkedIn on Twitter.