Ronald Acu?a Jr. played both sliding coach and umpire on Charlie Culberson's run

Ronald Acuña Jr. can do it all. The Braves rookie possesses all five tools, with plenty of speed, power and the ability to man center field to make any baseball fan drool with envy. He's also got skills outside the fouls lines, which he displayed in Friday's first game back from the All-Star break against the Nationals. 
In the top of the fifth inning, Charlie Culberson was standing on base when Freddie Freeman hit a double. Sent home, there was going to be a play at the plate as Culberson came barreling in. Rather than simply telling Culberson to slide, Acuña tried to tell him where exactly he should slide. 
As soon as his teammate hit the plate, Acuña was ready to make the call. He even had to watch out to avoid swatting the umpire while he did: 

Is there anything Acuña can't do?