Old Army is a large retail store chain operating about 1,000 stores across the United States and Canada. Each store is connected into the Old Army data network, which is used primarily for batch data transmissions. At the end of each day, each store transmits sales, inventory, and payroll information to the corporate head office in Atlanta. The network also supports email traffic, but its use is restricted to department managers and above. Because most traffic is sent to and from the Atlanta headquarters, the network is organized in a hub and spoke design. The Atlanta office is connected to 20 regional data centers, and each regional center is in turn connected to the 30–70 stores in its region. Network volumes have been growing, but at a fairly predictable rate, as the number of stores and overall sales volume increase. Old Army currently uses RIP as its routing protocol but is considering moving to OSPF. Should it stay with RIP or move to OSPF? Why?