When your old boss calls you one of the most brilliant people she’s worked with, and your new employer acknowledges you had your pick of gigs, you’re probably in a good spot in your career.That’s where Cara Ann Hendrickson found herself after leaving the Illinois Attorney General’s office to join Massey & Gail LLP.The former public interest division chief left the AG’s office in March and officially joined the commercial-litigation boutique on April 22. Former attorney general Lisa M. Madigan, who led the office for …