The Ann Arbor city council’s Aug. 5 agenda includes an item naming Bob Guenzel as a nominee to serve on the Downtown Development Authority board. Guenzel retired as Washtenaw County administrator in May 2010. The agenda item does not indicate which of two DDA board members Guenzel’s appointment would replace: Jennifer S. Hall or John Splitt. Terms for both Hall and Splitt expired on July 31, but both have both told mayor John Hieftje that they would be willing to serve another term. Guenzel’s nomination would need to be confirmed by the city council at its Aug. 16 meeting.