In other words, managers need to make the most of their existing resource material yet simultaneously understand the ongoing depreciation of this resource base.

Many have kept costs down by using their own existing resources, such as market research, public relations, cold calling and negotiating well with suppliers.

The decision was driven by the reality that due to financial constraints, the city's existing resources simply could not maintain providing services to all areas.

Many workers work in service industries which manage, maintain or distribute already existing resources.

The astronauts may have to rely for long periods on their limited existing resources and medical advice from the ground.