Rookie baseball players given the newbie treatment

First days on the job are always the hardest.

Just ask the rookies of the St. Louis Cardinals.

The newcomers played the role of waiter as they made their way to a Starbucks before Tuesday's game against the Chicago Cubs. 

The four rookies had orders from everyone on the team to get drinks for players and staff, in full uniform.

At least they dressed to impress as the coffee run at customers laughing and taking pictures.