To the many duties of state Administration Secretary Marc Marotta – promoting the policies of Gov. Jim Doyle, negotiating casino compacts with Indian tribes, trimming waste – add this: Modeling for Hewlett-Packard. Doyle’s top aide appears on the cover of the computer company’s spring “Government Solutions” catalog. Other Wisconsin agencies have appeared in similar materials for other companies. For instance, in a February case study for Microsoft, University of Wisconsin-Madison accountant Jeff Sailor touts the company’s Great Plains software.