What Do Two Accounting Firm Shills Chat About on the Golf Course?

Newly-minted KPMG billboard, Stacy Lewis is defending her title at the Kraft Nabisco Championship, and as luck would have it, she's been paired with fellow accounting firm check casher, Natalie Gulbis:

We like the enthusiasm, Stacy! Of course, a lucrative new sponsorship would put most people in a good mood. But oddly, her playing partner doesn't seem to be as stoked:

Why, exactly, is Stacy so excited for this pairing? Maybe she's simply fan of Natalie's work? Does she want to yap to Nat about how big her KPMG check is? Does she have some gossip on John Veihmeyer that she's dying to share? On the other hand, is Natalie all "meh" about this or is she just intimidated by the size of Stacy's trophy and/or accounting firm sponsor check? If you have other theories, do share.