DES MOINES – Top Iowa Department of Administrative Services officials told lawmakers Wednesday a 2011 revamp in managing state construction projects has netted nearly $10 million in savings – a level questioned by some Government Oversight Committee members.Also Wednesday, lawmakers were told federal money could have been used to pay settlements to laid-off DAS employees because payments were drawn from annual management fees state agencies pay to DAS using sources that could have been co-mingled with federal dollars.