The Director of Purchasing (Purchasing Agent) is an appointed official who is appointed to office for two-year terms. The Director of Purchasing, in accordance with state statutes, is appointed by and reports to a five member Purchasing Board consisting of three district judges and two county commissioners. Currently, Frank Ybarbo holds the office as the Director of Purchasing for Collin County. As of August 2003, Mr. Ybarbo has thirty two (32) years in local municipal and county government with fifteen (15) of those years as a county purchasing director.

The Purchasing Director of Collin County directs a sixteen member centralized county purchasing division and is charged with the responsibility for all contracting and for the purchase all supplies, materials and equipment for county use. In addition, the Director of Purchasing maintains surplus property and conducts public auctions for the disposition of county salvage and surplus by order of the Commissioners Court.

The Collin County Purchasing division consists of an authorized staff as follows:

• Director of Purchasing
• Administrative Procurement Assistant (1)
• Contracts Manager (1)
• Contracts Administrators (4)
• Contracts Assistant (1)
• Buyer Manager (1)
• Buyers (4)
• Property Manager (1)
• Property Maintenance Administrator (1)
• Computer Warehouse Coordinator (1)