O'Hair On His Way To Greatness?

Hello. People are singing the praises of Sean O'Hair for giving Phil Mickelson all he could handle for 16 holes at The Players Championship Sunday. O'Hair was only 2 shots back until he hit 2 balls in the water on the 17th hole. He wound up tied for 11th.
Ryder Cup berths, "next new American to win a major" and other tags are already being put on O'Hair. He's 24, and has already won a tournament. Look out World Golf Hall of Fame!
Personally, while I didn't see all of the final round, what I did see left me with some doubts. For one thing, O'Hair's pace of play was brutally slow. I've been convinced for a long time you cannot be a consistently good player if you are slow. For those who are saying Jack Nicklaus was slow, I'll counter with the fact that there's always an exception. Jack was a concentration master. I've always liked Lee Trevino's quote that it's easier for him to concentrate for 4 seconds than someone else to concentrate for 4 hours.
Second, O'Hair picked the wrong club for his tee shot on the 17th. He saw Mickelson put a wedge on the green. He was pumped up. If he hits wedge, worst case he's in the sand. Even if he puts it beside Mickelson's ball, he has a chance to be at worst 2 back going to 18, and maybe only one back, with water and other issues for Phil to deal with. I think he lost his patience.
Third, were people anointing Len Mattiece when he went into the water on the 17th in very similar circumstances? Not to this extent.
While O'Hair may go on to greatness, I think it's premature to coronate him.

Regards,
Steve