HARTFORD — Gov.-elect Ned Lamont has chosen a former Westport hedge fund executive to be his chief of staff and Hartford's current chief financial officer to be Connecticut's next top budget official.Likely to become two of the most important members of the Democrat's new administration, both are lauded by Lamont for having government and private experience. It's one of the key criteria for the former businessman-turned-politician as he pieces together his cadre of top advisers before the Jan. 9 inauguration.Lamont named Ryan Drajewicz, 39, most recently a senior management associate at Bridgewater Associates, as his chief of staff.