I'd imagine that with the explosion in disc golf's popularity, the talent pool is going to get awfully crowded over the next few years, making it more difficult to dominate enough to win "the Stanley Cup" year after year after year. Now that a 10 million dollar contract has been thrown down, that becomes a nice lure for tons of unknowns to focus on getting to work.
IMO that 10mil contract is as much about Paul's business sense as it is about his disc golf skills.
So anyone in the future that wants this to happen has to be as good as Paul with that also.