I love JDS's broken english and i think it is obviously something he is working on which you can't say for all the brazilian fighters.
Langauge barrier or no language barrier i think he is gonna wind up with the majority of the fighters getting through to the latter stages of the show - His coaching team is just a million miles ahead of Brock's.
You do realize that guys like Anderson Silva and Nog are more training partners than coaches right? Brock has some of the best coaches that money can buy. Don't let big named fighter fool you into thinking they are great coaches.