For the better part of the past decade, Tom Brady and Drew Brees were the NFL’s two top quarterbacks. But that’s no longer true.

Brady and Brees are still great. But they’ve got company at the top of the mountain with the likes of Patrick Mahomes, Lamar Jackson, Dak Prescott, Deshaun Watson and Josh Allen emerging as the next generation of great quarterbacks. That’s a major change in the NFL landscape.

Change is inevitable in the world of sports. In 2019, there have been myriad significant changes in sports, and we’re not just talking about the changing of the guard at quarterback in the NFL.

We’re talking about things such as big-name coaches landing in new places, NBA teams rising and falling, a first-time champion in men’s NCAA basketball, allegations of a juiced baseball and new looks with new uniforms.

Those are just a few of the changes that took place this year. Let’s examine the 12 most significant changes in the sports world in 2019.

12. The spread of legalized sports gambling

For years, betting on sports was illegal in the United States, with the exception of Nevada. Otherwise gamblers had to turn to offshore and online gambling or bet with illegal bookies. But all that has changed recently. Sports gambling now is legal in Arkansas, Delaware, Mississippi, Indiana, Iowa, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island and West Virginia in addition to Nevada. Gambling also has been legalized, pending launch, in several other states with legislation pending in approximately 20 other states. Only a handful of states have taken no action toward legalizing sports gambling.