Boyce's departure to German club Werder Bremen has fuelled the dreams of other young players hoping to hit the big time.
"I think its fantastic that a club the size of Werder Bremen is willing to watch our young players and put their faith in them," Jeffrey told the Belfast Telegraph. "I have no doubt that there are other young players in our league who could make the step-up if they were reaping the benefits of full-time coaching.
"The wonderful thing about the Liam Boyce move is that he has gone the traditional route in the sense that there was no need to bring the player over a trial and inconvenience Cliftonville.
"We were alerted to Liam's talent and promise when he was coming through the ranks at Cliftonville and we wanted to sign him but Eddie (Patterson) managed to keep him under his wing and keep the player's feet on the ground.
"Managers have to look after and protect their players and Liam was a player who was modest and always willing to listen to advice.
"Hopefully his transfer will break new ground in the Irish League and open the door to other players. I took the view before Peter Thompson left for Stockport that it would be wrong to stop a player becoming the best player he could be."