It's a perfectly good word and concept. But it causes some folks problems. Stewardship, that is.
Stewardship is a form, or an extension, of steward, the synonym for which is manager.
That is the lesson of Jesus' parable of the talents in Matthew 25. When he returned, he asked for an accounting of what had occurred during his absence, and the stewards were rewarded, or not, in accordance with the effectiveness of their management. Turn the shadows of the evening Into sunshine all the day. The owner or operates of a business is steward of inventory, personnel, property and funds that flow through the business. Every person, every couple, who heads a family, is steward of all of that family's resources.