Mayor Stephanie Rawlings-Blake cannot be said to have been an enthusiastic champion of the push in recent years to require regular, comprehensive audits of city agencies, but the idea is taken as a given by those trying to replace her. Give credit here to Councilman Carl Stokes, who put the issue on the map several years ago. He, like his competitors, wants to speed up efforts to audit all city agencies and to make the results public. Mayor Rawlings-Blake also failed to make effective use of CitiStat — the award-winning government performance measurement system implemented by former Mayor Martin O'Malley. During her tenure, the agency's budget doubled but its activities languished as it cut back on the regular monitoring of issues that was its central purpose. Many of the candidates have made revitalizing CitiStat an issue, with Councilman Nick Mosby perhaps the most vocal. An engineer by training, he advocates a substantially beefed-up use of data and statistics to improve performance and predict problems before they occur.