Picture a luscious, grown-up Goldilocks and you’ve got a starting point for Karlen Garrard. Her thick golden curls are always beautifully coiffed – or pulled back – and she has a vibrant curiosity and sweetness that I find a rare combination. Karlen isn’t too this or too that; she’s just right. Karlen came to Vanderbilt in 1985 and has never left, except for a two …