From what I can tell, Helton is good at breaking down film with the coaches and pointing out the (sometimes obvious) things that need to be worked on: rotate more players, run the ball more, run 3-4 instead of 2-4-5.
The offensive system is his (a hybrid of the sarkiffin offense and the WKU passing game) as is the defense (the 3-4 with a lot of nickel that’s been run since 2013.) He’s also good with the players, family, and boosters.
It sounds like he’s mostly hands off in games though aside from talking to and calming players down after plays and deciding to go for it in 4th or go for 2. Which infuriates me.
I’ve also heard he’s the best recruiting closer on staff.