Good "mic'd up" video below featuring Tulane's co-defensive coordinator Jon Sumrall.
Sumrall's a great guy, excellent coach. His players are going to enjoy playing for him.
The entire video is good and shows a lot of his style; but we've got it tee'd up to show you the last 30 seconds or so in which he's got his defensive linemen circled up. Sumrall's constantly coaching them up throughout practice and here at the end he's telling them it's not personal; that he trying to get them to be as good as they can be...but with some humor thrown in he stresses that if his senior leader isn't performing then he's going to be on "top of him, choking him".
Again, we've got the last 30 seconds tee'd up below. At the end hit replay and watch the entire thing to learn more about Sumrall's style. Sumrall was an excellent hire by CJ.