Jack Stick's verbal resignation last Friday as top lawyer at the Health and Human Services Commission has not quelled controversy over Stick's involvement in awarding a $110 million no-bid contract to detect Medicaid fraud. State Sen. John Whitmire, D-Houston, on Thursday asked the state's public integrity unit to investigate. On Wednesday, HHSC canceled another smaller contract awarded on a similar no-bid basis from the Department of Family and Protective Services to help caseworkers find information on families under investigation.