Comparing Microsoft and Oracle is like comparing a car with a bicycle. Both are useful means of transportation, but only one is a more efficient use of time and resources. A car gives you a more powerful engine, can reach more places, and runs on both electricity and gas. The car in this analogy is Microsoft, while Oracle is the bicycle. Although it appears cheap like a bicycle, in actuality Oracle drives up costs over time.
Have you considered Managed Services to fill your IT support needs? Are you unsure of how it can be of benefit to your federal agency?