The transition between Tachi-Waza (standing techniques) and Ne-Waza (ground techniques) are rarely taught in BJJ. This is a small window of opportunity that is often neglected in BJJ. Capitalising on this moment is a speciality high level Judokas and Sambo players.
A perfect example of a Judo player that had mastered the transition game in Judo is Olympic bronze medalist Flavio Canto of Brazil. As soon as he would throw his opponent, he would make them fall in a way where he would already be setting up his submission on the ground. Canto is also a black belt in BJJ.
Here is a good one: Ko Uchi Gake to truck back take:
