For those like me who do not do The NY Times's crossword puzzle:
syn·ec·do·che ( P ) Pronunciation Key (s-nkd-k)
n.
A figure of speech in which a part is used for the whole (as hand for sailor), the whole for a part (as the law for police officer), the specific for the general (as cutthroat for assassin), the general for the specific (as thief for pickpocket), or the material for the thing made from it (as steel for sword).
To answer the question, from all second hand reports I have heard, they are true partners - both agreements and disagreements. I am sure at the beginning it was nice to have a 2 time Masters Champion on the letterhead, but here in this little myopic GCA world, I don't think of Crenshaw that way.
I think the real question is why have they not added some of their "regulars" to the letterhead ? Probably similar to my little 2 person partnership that I have with my partner, they don't want to run a firm, they want to build golf courses.