When Executive Chef Drew Trautmann and proprietors Eli Hengst and Jared Rager (of Mendocino in Georgetown) announced that they were opening a restaurant where Il Raddichio used to be, Capitol Hill food watchers were understandably excited. On a block inhabited by a Burrito Brothers, the Capitol Lounge, and formerly a Chesapeake Bagel Bakery, the new American cuisine of the sort served at Mendocino was welcome change. The Hill has seen a few good new…