Dracaena Massangeana is an easy-care house/office plant will tolerate many abuses, but be careful not to over-water or over-fertilize. Droopy, yellow leaves are a sign it's overwatered and may indicate root rot. Be sure to use a container with a drainage hole and never allow the plant to stand in water.
Dracaena Massangeana will shed its lower leaves, leaving a bare stem with a cluster of leaves at its top. New plants may drop a few leaves. This is normal. It needs time to adjust after the shock of being moved to a new home.