I don't think Speith has enough game between the ears right now to challenge. I'll be pulling for JT but if I were a betting man I'd lay money on Bubba. He has a feel for Augusta.
Spieth is a complete head case right now....
There are 3 certainties in an uncertain world:
1. All Politicians Are Liars 2. All Gun Laws Are an Infringement 3. Taxation Is Theft