Gronberg basically needs to do one to accomplish the other.
It's been mentioned quite often during our coverage that he is good-to-go for next year because he finished in the top-25 on the Nationwide Tour this year and is 'exempt' on the PGA Tour next year. That is technically true, but then again, he was technically exempt this year after finishing 18th in last year's Q-School. And keep in mind that Q-School and Nationwide Tour graduates share the exact same level of 'exemptness' on the PGA Tour. As a 'fully-exempt member' of this year's PGA Tour, Gronberg is playing his 13th Tour event of the year this week. As a member of the top 125, he could play as often as he wants sans the majors and WGC events next year. In short, the difference between a top-125 finish and a 'graduate' finish is night and day, and nobody knows that better than Gronberg.
Eighteen players are within four shots of Gronberg and the three other co-leaders, so Sunday should be quite the shootout. And just about all the players who are on the outside (of the top 125) looking in would love to trade scenarios with Gronberg, with the one exception being Mathias himself.