Is it your desire to be promoted from one level to a higher level ?
Simply ask God to promote the person ahead of you!
Moses initially occupied the position of a Prophet while Aaron was a Priest.It was when God elevated Moses to be a god to Pharaoh that Aaron was able to occupy the position of a Prophet.
“And the LORD said unto Moses, See, I have made thee a god to Pharaoh: and Aaron thy brother shall be thy prophet.
Thou shalt speak all that I command thee: and Aaron thy brother shall speak unto Pharaoh, that he send the children of Israel out of his land” -Exodus 7:1-2