I have serious doubts about "Big Stan". He got burned with the Pat Tillman mess too.
I heard a lot of OEF troops couldn't stand him. He reportedly only eats 1 meal a day & while in charge of US forces, cut all the fast food & MWR outlets in Afganistan(Subway, Burger King, Starbucks, etc).
Many spec-ops & SEALs call the 5.56mm the "poodle shooter". Many set up custom 7.62 rifles for "business".
The new 6.8SPCII got a lot of press too in the 2000s but it's seems to drop off now(2013).