Jordan Spieth's meteoric rise as the top American golfer is the worst nightmare for traditional instructors.
The emphasis is on traditional.
The old-school view is that a golf swing has to look a certain, classic way in the vein of Ben Hogan or Sam Snead, who are two of the all-time best ball strikers.
Spieth's non-classic swing bucks that philosophy at the core.
And those types of teachers were probably cringing at the thought that this week's PGA Championship at Whistling Straits would end in a Grand Slam coronation for the young Texan.
Because his success would mean junior golfers across the country would try emulating his non-technically sound swing.
Legendary golfer Bobby Jones tried copying the swing of Stewart Maiden, who was the professional at the club Jones played.
But does mimicking a top player's swing have that much of an adverse effect?
Spieth gets it done where it really counts: with his putting and heart. He's showing people how to win, despite his unconventional swing.
Jim Furyk is another example of how not to teach other players how to swing, because it's unique to him. It's not to say you can't be successful with that model, but it's unlikely.
"There's more than one way at skinning a cat," said Terry Hanson, a former European Tour golf coach that now teaches touring pros out of the Florida Golf Performance Center in Sarasota. "If you look at the way Jordan Spieth walks, for example, he has quite a different gait and somebody like Tiger Woods has a different gait. These guys sort of walk differently; they hold themselves differently and have different body shapes. I can't imagine that we have what is regarded as a normal golf swing."
Both Furyk and Spieth have a total of three majors, with the latter nearly winning three straight this season. The British Open just eluded Spieth, who missed a birdie on the 72nd hole to join a three-man playoff ultimately won by Zach Johnson.
Even Johnson doesn't possess the "classic" golf swing, yet he's won two career majors.
This week's PGA Championship is often the forgotten major, holding the lowest esteem of the four throughout the year. With regular season football at the professional and college level around the corner and Major League Baseball's season hitting the stretch run, golf's last major often falls down the pecking order for sporting events to watch this time of year.
However, this year's tournament could provide the necessary spark to reinvigorate the sport.
And that's a rivalry between the game's top two players: Spieth and Rory McIlroy.
Nobody knows what kind of condition McIlroy's game is in roughly five weeks after rupturing an ankle ligament while playing soccer with friends.
However, if there are no signs of rust, and he can find himself contending late Sunday alongside Spieth, then golf fans will finally get the birth of a rivalry that hasn't been seen in the sport in ages.
"Everybody, obviously, wants to see that tussle between Jordan Spieth and Rory McIlroy," Hanson said. "The fact is, they're both brilliant in different ways. Can Jordan Spieth hit the shots that Rory McIlroy can hit? Absolutely not. No chance. He can't hit it as high. He can't hit it as dynamically. But can Jordan Spieth outscore and out-putt and out-think Rory McIlroy? Absolutely. They're two very different types of players. If they do get into contention and they do happen to get close, I think it's going to be fascinating to watch."
Jason Dill, sports reporter, can be reached at 745-7017 or via email at firstname.lastname@example.org. Follow him on Twitter @Jason__Dill and on his Facebook page at Jason Dill Bradenton Herald.