I told my son to be a "gray man" in Navy bootcamp. He did a fine job since his DIs didn't even know his name upon graduation. Five years later, they would have had to call him sir if they were talking to him. 
@rangerrebew Unless things have changed drastically,that won't work in SFTG. For one thing,EVERY student takes turns being the detachment commander and issuing orders as well as creating battle plans. You might see an E-4 giving orders to an 0-3 one day,and a SSG giving them both orders the next day.
And the reality is that a young E-5 may well end up leading patrols against the enemy because he just happens to be the only one available at the time.
I,personally,ended up being the company motor pool sgt once because I had the misfortune of walking past the SGM's office right after he hung up the telephone with Group Headquarters telling him they were creating a branch of the Group Motor Pool in our company. There MAY have been someone somewhere in the army that knew less than I knew about running a motor pool than me,but I have no idea who it would have been.
The SGM told me to not worry about it because he was going to send me some detail men to help me do the inventory,repaint bumper numbers,etc,etc,etc.
I was an E-4 at the time. He sent me an E-6 and 2 E-7's as detail men to work under me. No such thing as a learning curve,just throw me in and see if I sink or swim.
Worse freaking job I ever had in my entire life. Luckily for me and everyone else,Group Headquarters managed to find an actual QUALIFED motor sergeant to take over in just a few days,and I could go back to doing things like cross training in actual SF career fields.
SF may be the only military organization where E-5's and E-9's are buddies.
