In writing the only book so far on GE leader Jeff Immelt -- Jeff Immelt and the New GE Way -- it was evident the leader was marked from the start by two distinct things. One was quite obvious, that Immelt followed Jack Welch, a man hailed at the end of the 20th century as one of the greatest business leaders of that century.

The other was also rather obvious, but unclear in some ways in how it might mark Immelt's leadership tenure at GE: the 9/11 terrorist attacks on the U.S.

Immelt took the job just four days before the September 11, 2001 terrorist attacks, and a decade later he's still trying to get investors back on GE's track while completely reshaping the company from the house that Jack built. He told me in interviews about how his first year on the job was difficult -- tougher than he could have imagined. Immelt knew the challenge would be difficult following in Welch's footsteps.

But nobody could prepare for 9/11. The world as we knew it stopped. Then came the Enron implosion, and the recession, wars, and a lot more domestic and global turmoil. Wall Street didn't view companies, or leaders, the same way, and the world didn't operate the same way.

Also, the presence of Welch in retirement loomed large.

In talking with Immelt several years ago for the book, I once mentioned to him the coach of the Green Bay Packers who followed Vince Lombardi, without saying the name.

Phil Bengston, Immelt said, laughing.

He knew exactly where I was going.

Immelt knew in succeeding Welch he was potentially to GE what Bengston was to the Green Bay Packers, but he planned to get a different result. Immelt, knew, however, the process of winning would take time. He inherited, after all, a company and a stock that had peaked in most every way.

GE had some strategies established under Welch that were still working, like leverage in the companies financial arm which helped pump up earnings to surprise and delight investors.

Immelt knew that had to change, but he also knew it could not happen overnight, or even in the course of one year. The stock was having enough trouble keeping up with its lofting price-to-earnings ratio amid the end of a high-flying stock market and 9/11 repercussions that struck the company days after Immelt took over.

Immelt Inherited Peak Cycle Performance

Some of GE's once-stalwart cash producing business, like its plastics division, had tired legs at the finish line, Immelt said, and the conglomerate's mix needed to be changed first. So he went about a massive, long-term plan of reshaping GE the same way Welch had done when he had taken over two decades before.

But Welch had taken over when the company was in the bottom of an economic cycle. He took over GE in a recession, not the height of a bubble. Immelt got the job right after the end of the high-flying 1990s, a era which crowned CEOs with mythical, God-like crowns, and Welch was bestowed the biggest of them all.

Despite the challenges, Immelt was managing to get the plan done in many respects, one year at a time. The company's stock price was right-sizing according to the market's more measured gauge. But probably nobody could have avoided that, considering the lofty levels GE traded it upon Welch's retirement. -- not even Welch himself.

But Immelt made one big mistake, that might not have ever registered in a big way if not for a confluence of events. The Bear Stearns collapse. The fall of Lehman Brothers. The credit crisis. The global real estate meltdown.

Suddenly, GE held expensive global real estate and more than $100 billion in short-term commercial paper rolling over and nobody wanted to touch either of them. By over-leveraging GE's finance arm when the getting was good, GE was at the brink of major disaster when the global economic bubble burst.

Overcoming Mistakes

Immelt had known before the meltdown the company needed to ween off the leveraged risk from finance that was begun under Welch. They'd run that race for too long, jeopardizing GE's coveted AAA credit rating. But Immelt had tried to build up the company's infrastructure business first, so the transition could happen more seamlessly.

Fate does not always play according to our best laid plans, however. If not for the U.S. government's commercial paper backstop established during the meltdown, GE might have been in real trouble. Since GE found a backstop for its commercial paper exposure, Immelt's challenge simply became executing the reshaping plan at a faster pace.

Some observers doubted, though, as GE's credibility got stained. They wondered if GE did not have some sort of black box in its finance arm that might clobber earnings for years to come.

Immelt argued GE had no black box. He admitted mistakes, as any good leader must do, and GE more quietly if not humbly went about its business in making the company a 21st century sustainable and reliable profit engine.

Immelt Optimistic Again

There's still a lot of work to be done on the plan, but Immelt's optimism given Friday along with the company's solid second quarter earnings is perhaps his most notable bullish sentiment we've heard in a couple of years. Finally, it seems the plan is taking hold and the economic forces beyond the company's control are subsiding.

GE's finance arm is faring well. And the company's global industrial businesses -- Immelt's signature -- are faring well. GE's stock is even making a push to cross the magical $20 barrier so many investors are looking for once again.

But the biggest story about GE's progress relates to Immelt himself. The company's second quarter earnings posted in July revealed GE is advancing along a solid and redeeming path, and Immelt is driving that car. At his 10th anniversary as GE's leader, Immelt has the company well positioned for strong results throughout the rest of this decade.

Bengston never got the chance to show he could win at Green Bay. But Immelt has himself, and GE, in a position to show he can win, just like the legendary leader he followed.

David Magee is the Managing Editor of the International Business Times and the author of 12 books, including Jeff Immelt and the New GE Way (McGraw-Hill).