Todd Grams, the Veterans Affairs Department’s chief financial officer, is leaving to become chief of staff at the IRS. In an email sent today to “Friends and Colleagues,” Grams, who is also the VA’s executive-in-charge for management, said he is returning to the IRS this week at the request of acting Commissioner Danny Werfel. “For a total of almost 11 years (over two tours), I have had the honor to serve our nation’s veterans,” Grams said. “I am very grateful to have had both opportunities to contribute at the VA.” Grams was previously at the IRS from 2001 to 2006, first…