I haven't just helped a lot in the past, and ran a lot. No, much more than that.
Go on the offsite. Look at all those training diaries. I was the very first one. I encouraged others to do the same. Then Wozzt made one, and then it started to explode. But it started with me, and my thread is still going.
Domestic scouting was non-existent circa S12. I volunteered to help with every 18 y/o, and I was the only one besides the current NT/U21 coach to be given access to the database(now extinct). I must have updated 100 18 y/o that first season. And after? Domestic scouting became HUGE. Dozens of scouts volunteered their time, and were given access to the database.
Training. I have trained 3 U21/NT guys in my career, most notably current NT superstar Otto Reedy. But I don't believe in those high salary behemoths that some train. I believe driving is the most underrated skill in the game. It is nearly free, and cap efficient, but it is the bridge between inside skills and outside skills. I like to think I was big in advocating for balance secondaries with your trainees, even if they are a shoo-in for the U21 team if you just pumped primaries.
I was an advanced scout under Sleet. I wasn't very good, I'll admit that(it was also about a dozen seasons ago, so..) but I learned a lot about spreadsheets, tactics, and opponent tendencies, and that stuff has not left me, even if I'm not as active as I was all those seasons ago.
Call me biased, but I think I should have been the U21 coach many seasons ago going off my pedigree. I'm not as active as I once was, but that doesn't mean I don't know how to do any of what it takes to be the U21 coach. I've been around man great ones, and worked with them.